In short
An idiom is a fixed group of words whose meaning cannot be worked out from the individual words ("spill the beans" = reveal a secret), and a phrasal verb is a verb plus a particle that together take a new meaning ("call off" = cancel). Both are *non-literal* and *fixed* - you cannot change a word and keep the meaning. They are tested directly in SSC CGL/CHSL/CPO, IBPS and SBI, CDS/NDA/AFCAT, state PSCs, CUET-UG, XAT, SNAP and in the English sections of TCS NQT, AMCAT, CoCubes, eLitmus and Infosys/Wipro/Capgemini tests, and indirectly in every reading-comprehension passage. In university programmes they sit in the first-year Communication Skills / Professional English paper of the AICTE model curriculum and UGC CBCS, and in GATE's General Aptitude, whose Verbal Aptitude syllabus names "words, idioms and phrases in context". On the job they decide whether your email, group discussion and interview answers sound natural or stiff - and whether you misread a manager who says "let us park this and circle back".
Explained
What counts as an idiom, a phrasal verb, a collocation and a proverb
- Idiom: fixed, figurative, usually not alterable - "beat around the bush", not "beat around the shrub". Meaning is *conventional*, not logical.
- Phrasal verb (multi-word verb): verb + adverb particle and/or preposition, carrying a meaning different from the verb alone - "give up" ≠ give, "look into" ≠ look.
- Prepositional verb: verb + preposition that always stays joined to its object - "depend on", "look after", "insist on". Tested mostly as the right preposition.
- Collocation: words that habitually go together though each keeps its plain meaning - "heavy rain", "strong tea", "do homework", "make a decision". Wrong collocation ("make homework") sounds non-native even when grammatical.
- Proverb: a complete sentence carrying advice - "A stitch in time saves nine." Exams ask its meaning, not its structure.
- Cliché: an idiom worn out by overuse - "at the end of the day", "needless to say". Understand them; avoid them in written answers.
- Overlap test: "take off your shoes" is literal (verb + particle), "the business took off" is idiomatic. The same string can be either, so context decides.
How phrasal verbs are built: four types and the word-order rules
- Intransitive - no object: *The car broke down. He showed up late. Prices went up.* Nothing can come between the parts.
- Transitive separable - object can go before or after the particle: *call off the match / call the match off.* Most verb + adverb combinations are of this type (put off, turn down, carry out, fill in, switch on, take over, hand over, bring about, work out).
- Transitive inseparable (prepositional verbs) - the object always follows the whole unit: *look after the child*, never "look the child after". Also look into, go through, deal with, rely on, come across, run into, stand by.
- Three-word / phrasal-prepositional - verb + particle + preposition, always inseparable: put up with, look forward to, come up with, run out of, get along with, keep up with, catch up on, do away with, drop out of, stand up for.
Long-object rule: a long noun phrase goes after the particle - *He called off the match that had been scheduled for Sunday* (not "...the match that had been scheduled for Sunday off").
- Particle or preposition? Two quick tests. (a) Movement: an adverb particle can shift past a short object (*look the word up*); a preposition cannot (*run up the hill* → not "run the hill up"). (b) Stress: the particle is stressed - "He ran UP a huge bill" (idiomatic) versus "He ran up the HILL" (literal).
- Nominal and adjectival forms: many phrasal verbs become nouns with a hyphen or as one word - *a breakdown, a turnout, a handout, takeoff, setup, a layoff, a walkout, follow-up, backup*. Note the spelling difference: *set up the lab* (verb) but *the lab setup* (noun).
- Passive: separable and inseparable transitive phrasal verbs passivise - *The meeting was called off. The patient was looked after well.* Intransitive ones cannot.
- Polysemy: one phrasal verb, several meanings - *take off* = remove / depart (aircraft) / become successful / take leave; *make up* = invent / reconcile / compensate / apply cosmetics; *pick up* = lift, collect, learn casually, improve. Exams exploit this.
Particle meanings - the shortcut to hundreds of phrasal verbs
Learn the sense each particle contributes and you can guess an unseen combination.
| Particle | Core senses | Examples |
|---|---|---|
| up | completion, increase, creation, approach | eat up, use up, speed up, set up, come up, draw up |
| off | separation, departure, cancellation, stopping | take off, set off, call off, lay off, pay off, switch off |
| out | exit, exhaustion, distribution, discovery | go out, run out, hand out, find out, sort out, sell out |
| down | reduction, recording, failure, suppression | cut down, slow down, write down, break down, shut down |
| in / into | entry, inclusion, submission | fill in, join in, hand in, look into, go into |
| on | continuation, wearing, switching | carry on, go on, put on, hold on, count on |
| over | review, transfer, covering | go over, think over, hand over, take over, get over |
| through | start to finish, endurance | go through, see through, pull through, fall through |
| away | removal, distance | throw away, give away, run away, do away with |
| back | return, reciprocation, restraint | pay back, call back, hold back, cut back |
| forward / forth | progress, proposal | look forward to, put forward, bring forward |
| by / around | passing, managing, aimlessness | drop by, get by, hang around, get around |
Idiom families worth memorising
- Body: turn a blind eye (ignore deliberately) · give a hand (help) · cost an arm and a leg (be very expensive) · play it by ear (improvise) · keep an eye on (monitor) · get cold feet (lose nerve) · see eye to eye (agree) · pull someone's leg (tease) · off the top of my head (from memory, unchecked) · rule of thumb (rough practical rule).
- Animals: let the cat out of the bag (reveal a secret) · a white elephant (costly useless asset) · the lion's share (the largest part) · a wild goose chase (futile search) · straight from the horse's mouth (from the authoritative source) · an elephant in the room (an obvious issue nobody raises) · kill two birds with one stone.
- Work and money: call it a day (stop for now) · cut corners (skip steps to save time or cost) · in the red / in the black (loss / profit) · a ballpark figure (rough estimate) · bite the bullet (accept something unpleasant and act) · low-hanging fruit (easy gains) · on the back burner (deprioritised) · move the goalposts (change criteria unfairly) · raise the bar · red tape (excessive procedure) · the bottom line (the essential point; also net profit) · a steep learning curve (hard to learn quickly) · due diligence (careful prior investigation - also the formal term in M&A and SEBI/Companies Act practice).
- Time and luck: at the eleventh hour (at the last possible moment) · in the nick of time (just in time) · once in a blue moon (very rarely) · burn the midnight oil (work or study late) · a blessing in disguise · the tip of the iceberg · back to square one · get the ball rolling.
- Water and weather: weather the storm (survive a bad period) · in the same boat · learn the ropes (learn how a job is done) · steer clear of (avoid) · go overboard (overdo) · under the weather (slightly unwell) · a storm in a teacup (fuss over a trifle).
- Food: a piece of cake (very easy) · spill the beans · take it with a pinch of salt (treat sceptically) · bread and butter (main income) · a lot on my plate (many tasks) · butter someone up (flatter).
Indian English: what is standard here and what travels badly
- Indian English has its own settled business idiom, correct and understood within India: do the needful (take the necessary action), revert (reply), out of station (away from town), kindly intimate (please inform), prepone (an Indian coinage, now recorded in Oxford dictionaries), cousin brother/sister, passing out (graduating - elsewhere it usually means fainting, except in military "passing out parade"), what is your good name.
- In an MNC, a client mail or a GRE/IELTS answer, prefer the globally neutral form: *please take the necessary action*, *please reply*, *out of town*, *advance the meeting*, *graduating in 2026*. "Revert back" and "return back" are redundant in any variety - drop "back".
- Other frequent slips: *discuss about* (discuss needs no preposition), *order for a coffee*, *cope up with* (correct: cope with or put up with), *one of my friend*, *myself Rahul* (say "I am Rahul"), *fill up the form* (standard: fill in / fill out).
- None of this is "bad English" in India; the point is audience. Switching register on demand is itself an assessed skill in GD and HR rounds.
Register: when to use a phrasal verb and when to use a single formal verb
- Phrasal verbs are informal and conversational; their single-word Latinate equivalents are formal and written. Spoken interviews and GDs reward the first; reports, tenders, notifications and legal drafting reward the second.
- Technical and statutory writing avoids idioms entirely because they are imprecise: IS codes, contracts, audit reports, government circulars and compliance filings use plain unambiguous verbs. An idiom in a specification is a defect.
- Advantages of idiomatic language: compact (one phrase replaces a clause), natural-sounding, builds rapport, scores in IELTS speaking (band 7 expects some less common and idiomatic vocabulary; band 8, idiomatic language used naturally and accurately) and in HR rounds.
- Limitations: opaque to non-native listeners, often ambiguous, regionally variable, and dated clichés weaken written answers. Three well-used idioms beat ten forced ones.
| Informal (phrasal) | Formal (single verb) |
|---|---|
| put off | postpone, defer |
| call off | cancel |
| find out | ascertain, determine |
| carry out | conduct, execute, perform |
| look into | investigate, examine |
| go up / go down | increase / decrease, decline |
| cut down on | reduce, curtail |
| set up | establish, install |
| bring about | cause, effect |
| do away with | abolish, eliminate |
| put up with | tolerate |
| get in touch with | contact |
| hand over | submit, transfer |
| point out | indicate, highlight |
Exam question types and a method for each
- Meaning of the underlined idiom (4 options) - SSC, bank, CDS/AFCAT, state PSCs. Method: fix the polarity from context (praise or criticism), which usually kills two options; then reject the literal-looking option, which is the standard trap.
- Fill in the blank with the correct phrasal verb / particle - AMCAT, CoCubes, TCS NQT, eLitmus. Method: mentally replace the gap with a plain verb ("cancelled"), then pick the phrasal verb that means it ("called off").
- Spot the error / phrase replacement - the error is almost always a wrong particle (*cope up with*), a redundant particle (*revert back*, *discuss about*), or a broken fixed form (*look forward to meet* → *to meeting*).
- Choose the idiom that expresses the given idea (reverse direction) - needs recall, so maintain a running list of 300-400 high-frequency idioms rather than attempting thousands.
- Idioms inside RC passages (CAT VARC) - not asked directly there, but misreading "the tip of the iceberg" wrecks the inference question. Patterns vary by year: XAT and SNAP have carried explicit idiom/usage items and CAT currently does not, while GATE's Verbal Aptitude syllabus lists "words, idioms and phrases in context" explicitly.
- Timing: in a speed test an idiom item is a 20-30 second question. If you do not know it, mark the contextually likely option and move on - it carries the same mark as a reading question worth two minutes.
Key points
- Idiom - fixed figurative phrase; meaning is conventional, not derivable from the words.
- Phrasal verb - verb + particle with a new meaning; four types: intransitive, transitive separable, transitive inseparable, three-word.
- Separable - object may precede or follow the particle (*turn the offer down*); inseparable - it may not (*look after her*).
- Pronoun rule - with separable verbs the pronoun goes in the middle: *call it off*, never "call off it".
- Long-object rule - a long noun phrase goes after the particle.
- Three-word phrasal verbs are never split - put up with, come up with, look forward to, run out of.
- Particle vs preposition - test by moving the object past it, or by stress ("ran UP a bill" vs "ran up the HILL").
- Particle sense - up = completion/increase, off = separation/cancellation, out = exhaustion/discovery, down = reduction/recording, over = review/transfer.
- Polysemy - take off, make up, pick up, run over each have four-plus meanings; context decides.
- Noun forms - breakdown, turnout, setup, layoff, follow-up; the verb stays two words (*set up*).
- Passive works for transitive phrasal verbs only: *the project was called off*.
- Collocation ≠ idiom - "heavy rain" is literal but fixed; "heavy" cannot be swapped for "strong".
- Register - phrasal verbs for speech, single formal verbs for reports, tenders, IS codes and legal text.
- Indian English - do the needful, revert, prepone, out of station are standard here; neutralise them for global and test audiences.
- Redundancy errors - revert back, return back, discuss about, cope up with, order for.
- Fixed grammar inside idioms - *look forward to meeting you* (gerund), *the ball is in your court* (keep the tense).
- Exam shortcut - decide positive/negative from context first; eliminate the literal option.
- Target list - 300-400 high-frequency idioms plus 150 phrasal verbs covers the bulk of SSC, bank and campus-test items.
Examples
Case 1 - Meaning of the underlined idiom (solved by elimination).
| Sentence | Options | Reasoning | Answer |
|---|---|---|---|
| The audit was only the *tip of the iceberg*. | (a) a cold problem (b) a small visible part of a big problem (c) the final stage (d) an unimportant detail | Context is a discovery that implies more; (a) is literal, (c) and (d) reverse the sense | (b) |
| He *let the cat out of the bag* before the launch. | (a) escaped (b) released an animal (c) revealed a secret unintentionally (d) lost control | Pre-launch secrecy sets the frame; (b) literal trap | (c) |
| The new metro line became a *white elephant*. | (a) a rare success (b) a sacred object (c) a costly, useless asset (d) a government project | Polarity is negative, so (a) is out; (d) is a fact, not a meaning | (c) |
| She agreed to *bite the bullet* and tell the client. | (a) refuse firmly (b) accept something unpleasant and act (c) delay the decision (d) injure herself | "Agreed to... and tell" shows action, not refusal or delay | (b) |
| The trainees are on a *steep learning curve*. | (a) learning slowly (b) learning a great deal in a short time (c) refusing to learn (d) teaching others | "Steep" = fast, demanding rise | (b) |
Case 2 - Correct the word order or the particle.
- ✗ *Please switch off it.* → ✓ Please switch it off. (pronoun with separable verb)
- ✗ *I will look the matter into.* → ✓ I will look into the matter. (inseparable)
- ✗ *She cannot put up the noise with.* → ✓ She cannot put up with the noise. (three-word, never split)
- ✗ *We look forward to meet you on Monday.* → ✓ We look forward to meeting you on Monday. (gerund after "to")
- ✗ *He cannot cope up with the workload.* → ✓ He cannot cope with the workload. / put up with the workload.
- ✗ *Kindly revert back at the earliest.* → ✓ Kindly reply at the earliest. (drop the redundant "back"; "reply" travels globally)
Case 3 - Fill the particle (one word each). *"The server broke ___1___ at 2 a.m., so we called ___2___ the demo, wrote ___3___ the error codes, went ___4___ the logs line by line, and finally sorted it ___5___ by 6 a.m. The team has been asked to cut ___6___ on overnight deployments."* Answers: 1 down (failure) · 2 off (cancellation) · 3 down (recording) · 4 through (start to finish) · 5 out (resolution) · 6 down (reduction). Each follows the particle-sense table, not memory.
Case 4 - Same content, two registers (why register is assessed).
- *Spoken, interview answer:* "We found out that the vendor had cut corners, so we called off the rollout, looked into the test data and set up a fresh pipeline."
- *Written, project report:* "It was ascertained that the vendor had omitted prescribed steps. The rollout was cancelled, the test data was investigated and a new pipeline was established."
- Both are correct English. The first in a report reads casual; the second in an interview reads stilted. Marks are lost for using the wrong one, not for the idiom itself.
Case 5 - An interview answer rewritten with idioms used sparingly.
- *Weak (idiom-stuffed):* "At the end of the day I think outside the box, touch base with stakeholders, go the extra mile and give 110% to move the needle."
- *Strong (two idioms, both doing work):* "The deadline moved up by a week, so rather than cut corners on testing I bit the bullet, dropped the two optional features and delivered the core module on time with the full test suite passing."
- The strong version uses cut corners and bite the bullet where each replaces a clause, and keeps the rest plain and specific. Interviewers mark the specifics; the idioms only make it sound natural.
Where it is used
- Campus aptitude and government recruitment: the English/Verbal section of TCS NQT, AMCAT, CoCubes, eLitmus, Infosys and Wipro tests; SSC CGL/CHSL/CPO, IBPS and SBI PO/Clerk, CDS/NDA/AFCAT, CUET-UG and state PSC papers carry explicit Idioms & Phrases items (RRB NTPC and Group D have no English paper at all).
- Client-facing IT and BPO roles at TCS, Infosys, Wipro, Accenture, Cognizant and Capgemini: voice and chat support, status calls and client mails where "we will circle back", "park it", "escalate" and "follow up" are the working vocabulary.
- Sales, banking and insurance (HDFC, ICICI, SBI, Bajaj Finserv): pitch language and relationship talk - touch base, in the red, ballpark figure, due diligence, bottom line.
- Technical writing, compliance and legal drafting: the reverse skill - stripping idiom out of specifications, SOPs, IS-code-based documents, audit reports and contracts, where ambiguity is a defect.
- Group discussions, HR rounds and MBA interviews (CAT/XAT/GMAT-based admissions): examiners note idiomatic fluency and penalise clichés and wrong usage alike.
- Higher study and migration tests: IELTS and TOEFL speaking and writing rubrics explicitly reward natural idiomatic range; GRE Text Completion and Sentence Equivalence items turn on idiomatic word choice.
Interview questions
- Q: What is a phrasal verb? A: A verb combined with an adverb particle and/or a preposition that together carry a meaning different from the verb alone, as in "call off" meaning cancel.
- Q: How is an idiom different from a proverb? A: An idiom is a figurative phrase used inside a sentence; a proverb is a complete sentence that states general advice, like "A stitch in time saves nine."
- Q: Which phrasal verbs can be separated, and how do you test it? A: Verb + adverb-particle combinations with an object can be separated ("turn the offer down"); verb + preposition combinations cannot ("look after her"). The test is whether a short object can move past the particle.
- Q: Where must a pronoun object go? A: Between the verb and the particle in separable verbs - "switch it off", never "switch off it".
- Q: Correct this: "I look forward to hear from you." A: "I look forward to hearing from you" - "to" here is a preposition, so it takes a gerund.
- Q: Is "revert back" correct? A: No, it is redundant; "revert" already carries the sense. In Indian business English "revert" means reply, but for global readers "please reply" is clearer.
- Q: What does "cutting corners" mean, and give an example from your project? A: Doing something cheaply or hastily by skipping required steps - for instance skipping unit tests to meet a demo date, which I avoided by dropping optional features instead.
- Q: Explain "the elephant in the room" and "a white elephant" - are they related? A: No. The first is an obvious problem nobody is willing to discuss; the second is an expensive possession that is useless to maintain.
- Q: When would you avoid idioms completely? A: In specifications, contracts, audit and compliance documents, and with non-native audiences, because idioms are ambiguous and translate badly.
- Q: Give three meanings of "take off". A: To remove something, to depart as an aircraft does, and to become suddenly successful; it is also used for taking leave.
- Q: Tell me about a time you had to bite the bullet. A: When a vendor delivery slipped, I took the unpopular decision to inform the client early and re-plan the sprint rather than hope for recovery - the idiom means accepting something unpleasant and acting on it.
- Q: A manager says "let us put this on the back burner and touch base next week." What do you do? A: Deprioritise the item for now, keep it open rather than closed, and schedule a brief check-in with the manager next week.
Common mistakes
- Taking the idiom literally in an MCQ - the literal-sounding option is the designed trap ("under the weather" is not about rain).
- Splitting a three-word phrasal verb or an inseparable one - "put up the noise with", "look the matter into".
- Placing a pronoun after the particle - "switch off it", "call off it".
- Redundant or wrong particles: cope *up* with, revert *back*, return *back*, discuss *about*, order *for*, reach *to* the office.
- Altering a fixed idiom - "beat around the shrub", "a piece of pie", "burn the midnight lamp"; a changed word makes it wrong, not a variant.
- Stuffing an interview answer, GD or essay with idioms and clichés - examiners read it as padding; two apt idioms with specifics score higher.
- Using phrasal verbs in formal reports and official drafting, or heavy Latinate verbs in spoken answers - correct English in the wrong register still loses marks.
Related topics
Vocabulary, synonyms and antonyms · Grammar and sentence correction · Articles, prepositions and conjunctions · Cloze tests and sentence improvement · Reading comprehension · Business and email communication, group discussion and interview skills