Vocabulary

50 Most Asked Idioms and Phrases for SSC, Bank & Defence Exams (with Meanings)

The idioms and phrases that repeat across SSC CGL, CHSL, MTS, CDS and AFCAT papers — with meanings, example sentences, and a revision method that makes them stick.

By English Exam Pro Editorial Team · Updated 15 Oct 2026 · 3 min read

SSCCDSAFCATState exams

Key points

  • SSC Tier 1 usually asks about two idiom questions; CDS and AFCAT ask several.
  • Idioms repeat across years — a list drawn from past papers covers more than a dictionary does.
  • Learn each idiom with one example sentence, not just a meaning; exam options are built from near-miss meanings.
  • Revise on a schedule — day 1, day 3, day 7, day 21 — and keep revising the ones you got wrong.

How idiom questions are asked

  • Meaning — choose the meaning of the idiom shown in bold.
  • Substitution — replace a phrase in a sentence with the right idiom.
  • Fill in the blank — complete the idiom ("to ___ the beans").

50 high-frequency idioms

IdiomMeaning
A bolt from the blueA complete surprise
A blessing in disguiseSomething that seems bad but turns out good
A hot potatoA controversial issue
At the eleventh hourAt the last possible moment
Beat about the bushAvoid coming to the point
Bell the catTake on a dangerous task for the good of others
Break the iceStart a conversation in an awkward situation
Burn the midnight oilWork or study late into the night
By leaps and boundsVery rapidly
Call a spade a spadeSpeak plainly and honestly
Cry over spilt milkRegret what cannot be undone
Cut cornersDo something cheaply or carelessly
Feather in one's capAn achievement to be proud of
Fish out of waterUncomfortable in unfamiliar surroundings
Get cold feetBecome nervous and back out
Hit the nail on the headDescribe exactly what is right
In a nutshellIn brief
In hot waterIn trouble
Keep one's fingers crossedHope for a good outcome
Leave no stone unturnedTry every possible way
Let the cat out of the bagReveal a secret
Make both ends meetLive within one's income
Nip in the budStop something at an early stage
Once in a blue moonVery rarely
Out of the blueUnexpectedly
Play second fiddleTake a less important role
Pull one's legTease or joke with someone
Put the cart before the horseDo things in the wrong order
Rain cats and dogsRain heavily
Red-letter dayA memorable, important day
Red tapeExcessive official formality
See eye to eyeAgree completely
Spill the beansReveal secret information
Steal the showAttract the most attention
Take the bull by the hornsFace a difficulty boldly
The apple of one's eyeSomeone very dear
Throw in the towelAdmit defeat
Turn a blind eyeDeliberately ignore
Under the weatherSlightly unwell
Up in armsStrongly protesting
White elephantA costly possession that is of little use
Wild goose chaseA hopeless or pointless search
A storm in a teacupGreat anger over a small matter
Achilles' heelA weak point
Add fuel to the fireMake a bad situation worse
At daggers drawnBitterly hostile
Blow one's own trumpetBoast about oneself
Bury the hatchetMake peace
Face the musicAccept the consequences of one's actions
Hang by a threadBe in a very risky state

Idioms in sentences

✓The news of his transfer came as **a bolt from the blue**.

A complete surprise — nobody expected it.

✓The two neighbours finally decided to **bury the hatchet**.

To make peace after a quarrel.

✓The new flyover turned out to be a **white elephant** — expensive to maintain and hardly used.

A costly possession of little use.

How to make idioms stick

  1. Ten a day, not fifty. A long list read once is forgotten within weeks.
  2. Picture it. "Bell the cat" — the mouse that must tie a bell on the cat. A picture is a memory hook.
  3. Write one sentence of your own for each idiom.
  4. Revise on day 1, 3, 7 and 21. Spaced revision is what moves a word into long-term memory.
  5. Keep a list of the ones you get wrong and revise that list twice as often.

Frequently asked questions

How many idioms should I learn for SSC CGL?

Around 300–400 idioms drawn from previous SSC papers covers most of what is asked. Learn them ten a day with spaced revision rather than in one long session.

What is the meaning of 'bell the cat'?

To take on a dangerous or difficult task for the benefit of others — from the fable in which mice agree a bell should be tied on the cat, but none will do it.

What is the meaning of 'white elephant'?

A possession that costs a lot to keep but is of little use.

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