Idioms and Phrases Questions for CDS

What Are Idioms and Phrases

An idiom is a group of words whose combined meaning is completely different from the literal meaning of each word. For example, 'kick the bucket' does not mean literally kicking a bucket — it means to die. This is the core challenge: you cannot guess the meaning from the words themselves. A phrase is a fixed group of words that together carry a standard meaning, often used as a verb, noun, or adverb in a sentence. CDS tests both types under one section.

• Idioms have non-literal meanings — never translate word by word.
• Phrases are fixed expressions — changing even one word changes or destroys the meaning.
• Both can function as verbs, nouns, adjectives, or adverbs in a sentence.
• CDS questions usually give four meanings and ask you to pick the correct one.
• Sometimes a sentence is given and you must choose the idiom that fits the blank.

High-Frequency Idioms in CDS PYQs

Certain idioms appear again and again in CDS papers. These are mostly from everyday English, British English expressions, and idioms related to human behaviour and situations. Memorising these clusters is the fastest way to score in this section. Group them by theme so your brain stores them in organised shelves.

• Burn the midnight oil — to work or study late into the night.
• Beat about the bush — to avoid coming to the main point, to talk around a subject.
• A red herring — something that misleads or distracts from the real issue.
• Bite the bullet — to endure a painful or difficult situation bravely.
• Let the cat out of the bag — to accidentally reveal a secret.
• Spill the beans — to give away secret information.
• Hit the nail on the head — to describe something exactly right.
• Once in a blue moon — very rarely.
• Pull someone's leg — to joke or tease someone.
• At the drop of a hat — immediately, without any hesitation.
• Sit on the fence — to remain neutral, not take sides.
• Cost an arm and a leg — to be very expensive.
• Bite off more than you can chew — to take on more than you can handle.
• A blessing in disguise — something that seems bad but turns out good.
• Under the weather — feeling ill or unwell.
• Turn a blind eye — to deliberately ignore something wrong.
• Add fuel to the fire — to make a bad situation worse.
• Blow hot and cold — to keep changing one's opinion or attitude.
• Fall flat — to fail to produce the intended effect.
• Read between the lines — to find the hidden meaning in something.

Idioms by Theme — Memory Clusters

Grouping idioms by theme helps you remember them faster. When you see one idiom from a cluster, the others come along. Think of these as families living in the same neighbourhood of your memory.

• Secrecy cluster: let the cat out of the bag, spill the beans, keep something under wraps, mum is the word.
• Difficulty or courage cluster: bite the bullet, face the music, take the bull by the horns, in deep water.
• Inaction or avoidance cluster: beat about the bush, sit on the fence, turn a blind eye, drag one's feet.
• Anger or conflict cluster: add fuel to the fire, rub salt into the wound, blood is boiling, at loggerheads.
• Money cluster: cost an arm and a leg, tighten one's belt, make ends meet, on a shoestring.
• Rarity cluster: once in a blue moon, once in a while, a rare bird, few and far between.

Common Prepositional Phrases

CDS also tests fixed prepositional phrases where the preposition is part of the fixed expression. Changing the preposition completely changes or breaks the meaning. These look easy but are tricky because candidates often confuse which preposition belongs.

• In lieu of — in place of, instead of.
• By dint of — by means of, because of hard effort.
• In the nick of time — just in time, at the last possible moment.
• At the helm of — in control or charge of something.
• On the spur of the moment — done suddenly without planning.
• To no avail — without success, with no result.
• Under the aegis of — under the protection or sponsorship of.
• In cold blood — deliberately and without emotion.
• Out of the blue — suddenly and unexpectedly.
• At a loose end — having nothing to do, idle.

How CDS Questions Are Framed

CDS English questions on idioms come in two formats. Format One gives you an idiom or phrase in bold inside a sentence and asks you to identify its meaning from four options. Format Two gives you four idioms and asks which one matches a given meaning. Occasionally a fill-in-the-blank sentence is given where you choose the correct idiom. The trap is always one option that matches the literal meaning — avoid that.

• Format One — meaning of underlined idiom: most common format in CDS.
• Format Two — match meaning to idiom: less common but appears in recent papers.
• The wrong option is usually the literal word-by-word interpretation — always reject it.
• Two options often sound close — look for the most complete and precise match.
• Context in the sentence is a clue — use the sentence mood to eliminate options.

• Choosing the literal word-by-word meaning — this is the most common trap set by CDS paper setters. For example, choosing 'to kick a bucket' for 'kick the bucket' instead of 'to die'.
• Confusing similar idioms — for example mixing up 'spill the beans' with 'let the cat out of the bag'. Both mean revealing a secret but the question may test one specifically in a context where the other does not fit.
• Ignoring the sentence context — candidates memorise meanings in isolation but when a sentence is given, the tone and situation help you confirm the right answer. Never skip reading the full sentence.
• Mixing up prepositional phrases — writing 'by hook and crook' instead of 'by hook or by crook', or confusing 'in the nick of time' with 'at the drop of a hat'. Fixed expressions must be remembered exactly.
• Attempting to reason out unfamiliar idioms logically — idioms are not logical. Reasoning from parts wastes time and leads to wrong answers. If you do not know it, eliminate the literal option and guess from context.

• The SECRET club — Spill the beans, let the Cat out of the bag, keep it under wRaps, mum is thE word, keep a seCreT — all mean revealing or hiding a secret.
• BULL and FIRE for courage and conflict — take the Bull by the horns, bite the Bullet, add fuel to the Fire, face the music — when things get tough, the BULL faces the FIRE.
• BLUE for rare and unexpected — once in a BLUE moon (rare), out of the BLUE (unexpected) — anything BLUE in idioms means something unusual happening.
• Arm-Leg-Belt for money — cost an Arm and a Leg (expensive), tighten your Belt (spend less), on a shoestring (tight budget) — your body parts and clothing tell you about money problems.

• CDS English typically has 5 to 10 dedicated idiom questions out of 120 total. At roughly one mark each, this section is a quick scoring opportunity if prepared well — aim for full marks here.
• Recent CDS papers (2021 to 2024) have favoured idioms from British English and classical literary usage — phrases like 'by dint of', 'under the aegis of', and 'to no avail' have appeared. Do not limit study to only conversational idioms.
• Time allocation: spend no more than 30 to 40 seconds per idiom question. If you know it, mark it instantly. If unsure, eliminate the literal meaning option first, then guess — do not leave blank as there is no negative marking in CDS English.
• Paper setters often use the idiom correctly in a sentence to give a contextual hint. Even if you do not recognise the idiom, read the sentence for emotional tone — negative, positive, or neutral — to narrow down options.
• Prepare a personal notebook of 50 to 60 idioms with one example sentence each. Revise this notebook the night before the exam. Recognition at exam time is all that matters — deep understanding is not tested.