Words Often Confused
English contains many words that look similar, sound similar, or appear to have related meanings but are used differently. These are called Words Often Confused.
Such words are frequently tested in competitive examinations through:
- fill in the blanks
- sentence correction
- error detection
- word replacement
- vocabulary tests
- spelling questions
- contextual usage
The best way to master confusing words is not merely to memorise their spelling. You should learn:
- their meaning
- their part of speech
- their correct grammatical usage
- a short example sentence
A useful rule is: Similar-looking words are not necessarily interchangeable. Context decides the correct word.
Table of Contents
ToggleAccept/Except
These two words are frequently confused because of their similar pronunciation.
Accept
Accept is generally a verb.
Meaning:
- to receive willingly
- to agree to something
- to recognise something as true or valid
Examples:
- She accepted the invitation.
- He accepted the offer.
- We must accept the truth.
Except
Except generally means excluding or apart from.
It can function as a preposition or conjunction.
Examples:
- Everyone attended the meeting except Rahul.
- I like all fruits except papaya.
- No one knew the answer except the teacher.
Accept vs Except
| Word | Meaning | Example |
|---|---|---|
| Accept | receive/agree to | I accept your proposal. |
| Except | excluding | Everyone came except Amit. |
Incorrect: He excepted my apology. ✘
Correct: He accepted my apology. ✔
Memory tip:
Accept → Agree/Receive
Except → Exclude
Affect/Effect
This is one of the most commonly tested pairs.
Affect
Affect is most commonly a verb meaning:
to influence or produce a change in something
Example:
- Pollution affects human health.
- Heavy rainfall affected transport services.
- The decision may affect thousands of workers.
Effect
Effect is most commonly a noun meaning:
result, consequence, or outcome
Examples:
- Pollution has a harmful effect on health.
- The medicine had an immediate effect.
- The new policy produced positive effects.
Affect vs Effect
Compare:
The weather affected the crops.
Here, affected is an action.
But:
The weather had a harmful effect on the crops.
Here, effect means a result.
Easy Memory Trick
Affect → Action
Effect → End result
This is useful for most competitive-exam questions.
Less Common Uses
Effect can occasionally be used as a verb meaning to bring about.
Example:
The reforms effected major changes in the system.
Affect can also have specialised noun uses, particularly in psychology.
However, for most examination questions:
- affect → verb
- effect → noun
is the safest working distinction.
Advice/Advise
These words differ in both spelling and grammatical function.
Advice
Advice is a noun.
Meaning: guidance or recommendation
Examples:
- He gave me useful advice.
- I need your advice.
- She followed the doctor’s advice.
Remember that advice is normally uncountable.
Incorrect: He gave me an advice. ✘
Correct: He gave me some advice. ✔
or:
He gave me a piece of advice. ✔
Advise
Advise is a verb.
Meaning: to give advice
Examples:
- I advise you to study regularly.
- The doctor advised him to rest.
- She advised me against travelling at night.
Advice vs Advise
| Word | Part of Speech | Meaning |
|---|---|---|
| Advice | Noun | guidance |
| Advise | Verb | give guidance |
Incorrect: The teacher gave me a good advise. ✘
Correct: The teacher gave me good advice. ✔
Incorrect: I advice you to wait. ✘
Correct: I advise you to wait. ✔
Memory tip:
Advice = Noun
Advise = Verb
Principal/Principle
These words sound alike but have completely different meanings.
Principal
Principal can be a noun or an adjective.
As a noun: the head of an educational institution
Example:
- The principal addressed the students.
As an adjective: main, chief, or most important
Example:
- The principal reason for his failure was lack of preparation.
In finance, principal can also mean the original sum of money invested or borrowed.
Example:
Interest is calculated on the principal amount.
Principle
Principle is a noun.
Meaning:
- rule
- fundamental truth
- moral belief
- basic law or doctrine
Examples:
- Honesty is an important principle.
- He refused to compromise his principles.
- The machine works on a simple scientific principle.
Principal vs Principle
| Word | Meaning | Example |
|---|---|---|
| Principal | chief/head/main | The principal entered the classroom. |
| Principle | rule/belief | Honesty is a moral principle. |
Memory tip:
The principal is your pal.
Both contain pal.
Complement/Compliment
These words have similar spellings but different meanings.
Complement
Complement means: something that completes, enhances, or goes well with something else
As a noun: The red curtains are a perfect complement to the furniture.
As a verb: The sauce complements the dish.
In grammar, a complement completes the meaning of a sentence element.
Example:
Rahul is a teacher. Here, a teacher functions as a subject complement.
Compliment
Compliment means: an expression of praise or admiration
As a noun: She received many compliments on her speech.
As a verb: The teacher complimented her on her performance.
Complement vs Compliment
| Word | Meaning | Example |
|---|---|---|
| Complement | complete/enhance | The colour complements the design. |
| Compliment | praise | She complimented him on his work. |
Memory tip:
Compliment → Praise
Complement → Complete
Both complement and complete begin with compl-.
Loose/Lose
These words are frequently confused because their spellings are very similar.
Loose
Loose is generally an adjective.
Meaning:
- not tight
- free
- not firmly fixed
Examples:
- This shirt is too loose.
- One of the screws is loose.
- The dog was left loose in the garden.
Pronunciation is usually: /luːs/
Lose
Lose is a verb.
Meaning:
- fail to keep
- misplace
- fail to win
- be deprived of something
Examples:
- Do not lose your admit card.
- Our team may lose the match.
- She lost her keys yesterday.
Forms: lose – lost – lost
Pronunciation: /luːz/
Loose vs Lose
| Word | Meaning | Example |
|---|---|---|
| Loose | not tight | My shoes are loose. |
| Lose | fail to keep | Do not lose your shoes. |
Incorrect: Do not loose your confidence. ✘
Correct: Do not lose your confidence. ✔
Beside/Besides
The addition of one letter changes the meaning significantly.
Beside
Beside means: next to or at the side of
Examples:
- She sat beside me.
- The house stands beside the river.
- Keep the bag beside the chair.
Besides
Besides means:
- in addition to
- apart from
- moreover
Examples:
- Besides English, she knows Hindi.
- Besides studying, he also works part-time.
- I do not want to go. Besides, it is already late.
Beside vs Besides
| Word | Meaning |
|---|---|
| Beside | next to |
| Besides | in addition to |
Compare:
- Rahul sat beside Amit.
→ Rahul sat next to Amit.
- Besides Amit, Rahul also attended.
→ Amit attended, and Rahul attended too.
Beside Oneself
A special idiomatic use:
- She was beside herself with anger.
Meaning: She was extremely angry or emotionally overwhelmed.
Stationary/Stationery
These are homophones and among the most frequently confused examination words.
Stationary
Stationary is generally an adjective.
Meaning: not moving; remaining in one place
Examples:
- The car remained stationary.
- The train was stationary for ten minutes.
- A stationary object has no change in position.
Stationery
Stationery is a noun.
Meaning: writing and office materials
Examples:
- paper
- pens
- pencils
- envelopes
- notebooks
Example sentences:
- The office ordered new stationery.
- I bought stationery for the examination.
Stationary vs Stationery
| Word | Meaning |
|---|---|
| Stationary | not moving |
| Stationery | writing materials |
Memory tip:
Stationery contains E → Envelope
Other Competitive-Exam Pairs
A large number of confusing words occur repeatedly in government and other competitive examinations. The following pairs are especially important.
Adapt / Adopt
- Adapt = modify according to new conditions
→ Animals adapt to their environment.
- Adopt = take up, accept, or legally take as one’s child
→ The government adopted a new policy.
Compare:
adapt a method → modify it
adopt a method → begin using it
Adverse / Averse
- Adverse = harmful or unfavourable
→ The project was delayed by adverse weather conditions.
- Averse = unwilling or opposed , Usually used with to.
→ She is averse to taking unnecessary risks.
Remember:
adverse conditions
averse to something
Allude / Elude
- Allude = refer indirectly
→ The speaker alluded to the earlier controversy.
- Elude = escape or avoid
→ The criminal eluded the police.
Allusion / Illusion / Delusion
- Allusion = indirect reference
→ The poem contains an allusion to mythology.
- Illusion = false appearance
→ The mirror creates an illusion of greater space.
- Delusion = false belief strongly held
→ He was under the delusion that everyone agreed with him.
Altar / Alter
- Altar = sacred table/platform
→ They stood near the altar.
- Alter = change
→ We need to alter the schedule.
Alternate / Alternative
- Alternate may mean occurring by turns.
→ Classes are held on alternate days.
- Alternative means another available choice.
→ We need an alternative plan.
In some modern usage, alternate is also used to mean alternative, especially in American English, but traditional examinations often maintain the distinction.
Amiable / Amicable
- Amiable = friendly and pleasant, generally used for a person
→ She has an amiable personality.
- Amicable = friendly and peaceful, generally used for relations, agreements, settlements
→ They reached an amicable settlement.
Assent / Ascent
- Assent = agreement
→ The President gave assent to the Bill.
- Ascent = upward movement
→ The climbers began their ascent.
Assure / Ensure / Insure
- Assure = make a person confident
→ I assure you that the information is correct.
- Ensure = make certain
→ Please ensure that the door is locked.
- Insure = provide insurance
→ He insured his car against theft.
Quick rule:
- assure → person
- ensure → certainty
- insure → insurance
Bare / Bear
- Bare = uncovered
→ He walked barefoot on the bare ground.
- Bear = tolerate/carry; also an animal
→ I cannot bear the pain.
→ The bridge can bear heavy loads.
Berth / Birth
- Berth = sleeping place in a train or ship
→ I booked a lower berth.
- Birth = being born
→ The date of birth is required on the form.
Born / Borne
Both come from bear, but their use differs.
- Born is used mainly in connection with birth.
→ She was born in Assam.
- Borne is used in other senses of bear.
→ The cost will be borne by the company.
→ The disease is mosquito-borne.
Brake / Break
- Brake = device used to stop motion
→ Apply the brake carefully.
- Break = damage, separate, or interrupt
→ Do not break the glass.
Breath / Breathe
- Breath = noun
→ Take a deep breath.
- Breathe = verb
→ Breathe slowly.
Canvas / Canvass
- Canvas = strong cloth, especially used for painting
→ The artist painted on canvas.
- Canvass = seek votes/support or collect opinions
→ The candidate canvassed for votes.
Censor / Censure
- Censor = examine and suppress objectionable material
→ The authorities censored the film.
- Censure = strongly criticise officially
→ The committee censured the official.
Cease / Seize
- Cease = stop
→ The fighting ceased at midnight.
- Seize = take forcefully
→ The police seized illegal goods.
Cite / Site / Sight
- Cite = quote or mention as evidence
→ Cite two examples in your answer.
- Site = location
→ The construction site was inspected.
- Sight = vision or something seen
→ The mountains were a beautiful sight.
Coarse / Course
- Coarse = rough
→ The cloth feels coarse.
- Course = route, direction, or programme of study
→ She completed a computer course.
Conscious / Conscientious
- Conscious = aware
→ He remained conscious after the accident.
- Conscientious = careful, responsible, and guided by duty
→ She is a conscientious employee.
Contagious / Infectious
- Contagious generally emphasises transmission from one individual to another.
→ Chickenpox is highly contagious.
- Infectious refers to disease caused by infectious agents and capable of infection.
→ Tuberculosis is an infectious disease.
The terms can overlap, so context matters.
Continual / Continuous
- Continual = repeated frequently with interruptions
→ We were disturbed by continual interruptions.
- Continuous = without interruption
→ The machine operated continuously for six hours.
Council / Counsel
- Council = governing or advisory body
→ The municipal council approved the plan.
- Counsel = advice; also a legal adviser
→ He sought legal counsel.
Credible / Credulous
- Credible = believable
→ The witness gave a credible explanation.
- Credulous = too ready to believe
→ Credulous people may easily fall for rumours.
Dairy / Diary
- Dairy = relating to milk
→ They own a dairy farm.
- Diary = personal written record
→ She keeps a daily diary.
Desert / Dessert
- Desert = dry region
→ The Sahara is a desert.
- Dessert = sweet course after a meal
→ We had fruit for dessert.
Memory tip:
Dessert has two S’s because you may want a second serving.
Device / Devise
- Device = noun; tool or equipment
→ This device measures pressure.
- Devise = verb; plan or invent
→ Scientists devised a new method.
Die / Dye
- Die = cease to live
→ Plants die without water.
- Dye = colouring substance or colour something
→ The cloth was dyed blue.
Discreet / Discrete
- Discreet = careful or tactful
→ Please be discreet about the matter.
- Discrete = separate and distinct
→ The report contains three discrete sections.
Economic / Economical
- Economic = relating to the economy
→ India has experienced significant economic growth.
- Economical = inexpensive or avoiding waste
→ Public transport is often more economical than private travel.
Eligible / Illegible
- Eligible = qualified or entitled
→ She is eligible to apply.
- Illegible = impossible or difficult to read
→ His handwriting is illegible.
Elicit / Illicit
- Elicit = draw out a response or information
→ The question elicited several responses.
- Illicit = illegal or forbidden
→ Police discovered an illicit trade network.
Eminent / Imminent / Immanent
- Eminent = famous and respected
→ He is an eminent scientist.
- Imminent = about to happen
→ A storm is imminent.
- Immanent = existing or operating within something
This word is less common but may appear in higher-level vocabulary questions.
Emigrate / Immigrate
- Emigrate = leave one’s country to settle elsewhere
→ He emigrated from India.
- Immigrate = enter another country to settle there
→ He immigrated to Canada.
Memory:
E → Exit → Emigrate
I → Into → Immigrate
Explicit / Implicit
- Explicit = clearly stated
→ The instructions were explicit.
- Implicit = implied but not directly stated
→ There was an implicit warning in his statement.
Farther / Further
- Farther traditionally relates mainly to physical distance.
→ The village is farther away than I expected.
- Further often means additional or more advanced.
→ For further information, contact the office.
Modern usage permits considerable overlap in distance contexts.
Flaunt / Flout
- Flaunt = display proudly
→ He flaunted his wealth.
- Flout = openly disregard a rule or law
→ They flouted the regulations.
Foreword / Forward
- Foreword = introductory section of a book
→ The book contains a foreword by a senior scholar.
- Forward = ahead
→ Move forward carefully.
Formally / Formerly
- Formally = officially or according to formal rules
→ The agreement was formally approved.
- Formerly = previously
→ The city was formerly known by another name.
Hoard / Horde
- Hoard = stored collection; also to accumulate
→ They hoarded food before the storm.
- Horde = large crowd or group
→ A horde of tourists entered the site.
Human / Humane
- Human = relating to human beings
→ Human development is essential.
- Humane = compassionate
→ Animals should receive humane treatment.
Idle / Idol
- Idle = inactive
→ The factory remained idle for a week.
- Idol = person/object greatly admired or worshipped
→ The athlete became an idol for young players.
Industrial / Industrious
- Industrial = related to industry
→ The region has experienced industrial development.
- Industrious = hardworking
→ She is an industrious student.
Later / Latter
- Later = after some time
→ I will meet you later.
- Latter = second of two previously mentioned items
→ Of tea and coffee, I prefer the latter.
For the first of two, use former.
Lay / Lie
- Lay = put/place something; requires an object
Forms: lay – laid – laid
→ She laid the book on the table.
- Lie = recline; does not require an object
Forms: lie – lay – lain
→ He lay on the bed yesterday.
This pair is especially important because lay is also the past form of lie.
Lightning / Lightening
- Lightning = electrical flash during a storm
→ Lightning struck the tree.
- Lightening = making lighter
→ The lightening of the load made the journey easier.
Moral / Morale
- Moral = ethical lesson or principle
→ The story teaches an important moral.
- Morale = confidence and enthusiasm
→ The victory raised the team’s morale.
Personal / Personnel
- Personal = individual/private
→ That is my personal opinion.
- Personnel = employees or staff
→ The company needs trained personnel.
Persecute / Prosecute
- Persecute = treat cruelly or unfairly, often repeatedly
→ Minorities may be persecuted under oppressive regimes.
- Prosecute = take legal action against
→ The state decided to prosecute the accused.
Plain / Plane
- Plain = simple; also flat land
→ She wore a plain dress.
- The river flows across a fertile plain.
→ Plane = aircraft or flat surface
The plane landed safely.
Practice / Practise
In British English:
- Practice = noun
→ Practice improves performance.
- Practise = verb
→ You should practise every day.
In American English, practice is commonly used for both.
Indian competitive examinations often follow the British distinction.
Precede / Proceed
- Precede = come before
→ A short introduction precedes the chapter.
- Proceed = continue or move forward
→ Please proceed to the next section.
Prescribe / Proscribe
- Prescribe = officially recommend or order
→ The doctor prescribed medicine.
- Proscribe = prohibit or forbid
→ The organisation was proscribed by law.
Quiet / Quite / Quit
- Quiet = silent
→ Please remain quiet.
- Quite = fairly, very, or completely depending on context
→ The examination was quite difficult.
- Quit = stop or leave
→ He decided to quit smoking.
Respectful / Respectable / Respective
- Respectful = showing respect
→ The students were respectful towards the teacher.
- Respectable = worthy of respect
→ She comes from a respectable family.
- Respective = belonging separately to each
→ The students returned to their respective classrooms.
Respectfully / Respectively
- Respectfully = with respect
→ He respectfully disagreed with the decision.
- Respectively = in the order mentioned
→ Rahul and Amit scored 80 and 75 marks respectively.
Rise / Raise
- Rise = go upward; intransitive
Forms:rise – rose – risen
→ Prices have risen sharply.
- Raise = lift/increase something; transitive
Forms:raise – raised – raised
→ The government raised taxes.
Role / Roll
- Role = function or part
→ Education plays a major role in development.
- Roll = rotate, list, or cylindrical form
→ The ball rolled down the hill.
→ His name is on the attendance roll.
Sensible / Sensitive
- Sensible = practical or reasonable
→ It was a sensible decision.
- Sensitive = easily affected
→ This plant is sensitive to cold weather.
Some Time / Sometime / Sometimes
- Some time = a period of time
→ The work will take some time.
- Sometime = at an unspecified time
→ Visit me sometime next week.
- Sometimes = occasionally
→ I sometimes walk to work.
Than / Then
- Than is used in comparisons.
→ She is taller than her sister.
- Then relates to time or sequence.
→ Finish your work and then leave.
Their / There / They’re
- Their = possessive
→ Their house is large.
- There = place/existence
→ There is a problem.
- They’re = contraction of they are
→ They’re waiting outside.
Weather / Whether
- Weather = atmospheric conditions
→ The weather is pleasant today.
- Whether = introduces alternatives or uncertainty
→ I do not know whether he will come.
Who’s / Whose
- Who’s = who is/who has
→ Who’s calling?
- Whose = possessive
→ Whose book is this?
Your / You’re
- Your = possessive
→ Your answer is correct.
- You’re = you are
→ You’re correct.
Common Competitive-Exam Pairs at a Glance
| Word 1 | Meaning | Word 2 | Meaning |
|---|---|---|---|
| adapt | modify | adopt | accept/take up |
| adverse | unfavourable | averse | opposed |
| allude | refer indirectly | elude | escape |
| altar | sacred platform | alter | change |
| amiable | friendly person | amicable | friendly relation |
| assent | agreement | ascent | upward movement |
| assure | reassure a person | ensure | make certain |
| bare | uncovered | bear | tolerate/carry |
| berth | sleeping place | birth | being born |
| brake | stopping device | break | damage |
| breath | noun | breathe | verb |
| canvas | cloth | canvass | seek votes/support |
| censor | suppress material | censure | criticise |
| cease | stop | seize | take forcefully |
| cite | quote | site | place |
| coarse | rough | course | route/programme |
| council | governing body | counsel | advice |
| dairy | milk-related | diary | personal record |
| desert | dry land | dessert | sweet course |
| device | instrument | devise | invent/plan |
| discreet | tactful | discrete | separate |
| economic | economy-related | economical | cost-saving |
| elicit | draw out | illicit | illegal |
| eminent | distinguished | imminent | impending |
| emigrate | leave a country | immigrate | enter a country |
| farther | physical distance | further | additional |
| flaunt | display | flout | disregard |
| formally | officially | formerly | previously |
| hoard | accumulate | horde | large crowd |
| human | relating to humans | humane | compassionate |
| industrial | related to industry | industrious | hardworking |
| later | afterwards | latter | second of two |
| moral | ethical principle | morale | confidence |
| personal | private | personnel | staff |
| persecute | oppress | prosecute | take legal action |
| prescribe | recommend/order | proscribe | prohibit |
| principal | chief | principle | rule |
| quiet | silent | quite | fairly/completely |
| stationary | motionless | stationery | writing materials |
| than | comparison | then | time/sequence |
| weather | climate condition | whether | alternative |
Context-Based Examples
Knowing definitions alone is not sufficient. Consider the following pairs in sentences.
- The new law may _____ small businesses.
→ Correct: affect, because a verb meaning influence is required.
- The new law may have a serious _____ on small businesses.
→ Correct: effect, because a noun meaning result is required.
- The teacher _____ me to revise regularly.
→ Correct: advised
But:
- The teacher gave me useful _____.
→ Correct: advice
Another:
- The car remained _____ for several hours.
→ Correct: stationary
But:
- The office purchased new _____.
→ Correct: stationery
The surrounding words usually reveal the required meaning and grammatical category.
Part of Speech as a Clue
Many confusing pairs become easier when their part of speech is identified.
| Word | Part of Speech | Related Confusing Word | Part of Speech |
|---|---|---|---|
| advice | noun | advise | verb |
| effect | usually noun | affect | usually verb |
| device | noun | devise | verb |
| breath | noun | breathe | verb |
| practice | noun in BrE | practise | verb in BrE |
| loose | adjective | lose | verb |
| principal | noun/adjective | principle | noun |
| complement | noun/verb | compliment | noun/verb |
When solving a question, ask:
Does the blank require a noun, verb, adjective, or adverb?
This can often eliminate the wrong option immediately.
Common Error Patterns
- Incorrect: He gave me an advice. ✘
- Correct: He gave me a piece of advice. ✔
- Incorrect: Pollution has a harmful affect on health. ✘
- Correct: Pollution has a harmful effect on health. ✔
- Incorrect: The principle addressed the students. ✘
- Correct: The principal addressed the students. ✔
- Incorrect: Your shirt is too lose. ✘
- Correct: Your shirt is too loose. ✔
- Incorrect: Do not loose your admit card. ✘
- Correct: Do not lose your admit card. ✔
- Incorrect: The bus remained stationery. ✘
- Correct: The bus remained stationary. ✔
- Incorrect: He bought some office stationary. ✘
- Correct: He bought some office stationery. ✔
- Incorrect: She sat besides me. ✘ if the intended meaning is next to
- Correct: She sat beside me. ✔
Quick Method for Competitive Exams
When confused between two similar words, use the following sequence:
- Determine the meaning required by the sentence.
- Identify the required part of speech.
- Look at the surrounding prepositions and collocations.
- Check the word’s spelling.
- Substitute the meaning into the sentence.
- Read the complete sentence again.
Example:
- The committee decided to _____ a new policy.
Options:
- adapt
- adopt
The intended meaning is begin using.
Therefore: The committee decided to adopt a new policy.
- The policy must be _____ to local conditions.
The intended meaning is modified.
Therefore: The policy must be adapted to local conditions.
Key Points to Remember
- Accept = receive/agree
Except = excluding - Affect = usually a verb meaning influence
Effect = usually a noun meaning result - Advice = noun
Advise = verb - Principal = head/main
Principle = rule or belief - Complement = complete or enhance
Compliment = praise - Loose = not tight
Lose = fail to keep - Beside = next to
Besides = in addition to - Stationary = not moving
Stationery = writing materials - Remember:
- Assure a person
- Ensure something happens
- Insure against risk
- Remember:
- Emigrate from
- Immigrate to
- Remember:
- Born → connected with birth
- Borne → carried/supported
- Remember:
- Rise → no object
- Raise → takes an object
- Remember:
- Lay something down
- Lie down yourself
- Remember:
- Continual → repeated with interruptions
- Continuous → uninterrupted
- Remember:
- Amiable person
- Amicable relationship/settlement
- Remember:
- Economic development
- Economical method
- Remember:
- Human being
- Humane treatment
- Remember:
- Industrial development
- Industrious worker
- Remember:
- Moral → ethical lesson
- Morale → confidence
- Remember:
- Personal → individual
- Personnel → staff
- Remember:
- Persecute → oppress
- Prosecute → take legal action
- Remember:
- Prescribe → recommend/order
- Proscribe → prohibit
- In British/Indian examination English:
- practice → noun
- practise → verb
- Use context rather than pronunciation alone.
- When two words look similar, first identify whether the blank requires a:
- noun
- verb
- adjective
- adverb
The most effective way to master Words Often Confused is through repeated contextual usage. Instead of memorising isolated spellings, associate each word with a short meaning and a standard expression—for example, adverse conditions, averse to risk; emigrate from, immigrate to; stationary vehicle, office stationery; principal of a school, principle of honesty. These natural word combinations make the correct choice much easier to recall in competitive examinations.
