Idioms and Phrases

🟢 Lite — Quick Review (1h–1d)

Rapid summary for last-minute revision before your NAT-I test.

An idiom is a fixed multi-word expression whose figurative meaning is conventional and cannot be deduced from its literal words — “kick the bucket” means to die, not to strike a pail. NAT-I Verbal Reasoning places idioms under the 3% Verbal section and in standard papers asks 5–10 MCQs requiring either the meaning of a printed idiom or the idiom that best fits a sentence.

Meaning-type item: four options, pick the closest meaning of the bold idiom.
Fill-in item: a sentence with a blank, choose the idiom that fits semantically.
Substitution-type: replace the underlined phrase with a synonymous idiom.

Mastery comes from rote memorisation of roughly 300–500 common English idioms and their standard meanings.

🟡 Standard — Regular Study (2d–2mo)

Standard content for students with a few days to months.

What counts as an idiom

An idiom is a conventionalised figurative expression whose whole-unit meaning differs from the sum of its parts. The figure is fixed in form (word order, vocabulary, in many papers grammar), so substituting a near-synonym in standard papers destroys it. Origins trace to cricket (“hat-trick”, “stumped”), the navy (“batten down the hatches”), the Bible (“the writing on the wall”), and folk sayings (“a stitch in time saves nine”).

How NAT-I frames the question

The Verbal Reasoning section delivers idioms through three formats: meaning selection (find the meaning of the given idiom), contextual insertion (which idiom fills the blank), and one-word substitution style items where an idiom is paraphrased. All are four-option MCQs with no negative marking.

Distinguishing idioms from look-alikes

A proverb offers explicit advice (“a stitch in time saves nine”); an idiom is a figurative chunk embedded in a sentence. A colloquialism is informal register, not necessarily figurative. Many idioms began as metaphors and fossilised, which is why literal translation fails.

Concept	Key point
Idiom (e.g., “spill the beans”)	Fixed form; figurative meaning = “reveal a secret”.
Literal reading (“spill the beans”)	Physically empty a container of legumes — wrong sense.
Proverbs (“strike while the iron is hot”)	Standalone sayings, in many papers advisory.
Colloquialisms (“gonna”, “guy”)	Informal vocabulary, not figurative.

High-yield categories for NAT-I

Body parts: “cold feet”, “twist one’s arm”, “lend a hand”.
Animals: “let the cat out of the bag”, “kill two birds with one stone”.
Time/nature: “once in a blue moon”, “under the weather”, “calm before the storm”.
Money/work: “break the bank”, “burn the midnight oil”, “back to the drawing board”.

🔴 Extended — Deep Study (3mo+)

Comprehensive coverage for students on a longer study timeline.

Edge cases examiners exploit

Some idioms carry both literal and figurative senses (“break the ice” can describe ships in polar waters or social introductions), and NAT-I items always rely on the figurative reading. Others are grammatically locked: “by and large” cannot become “by and largely”. A few idioms are opaque to non-native speakers because the metaphor is dead (e.g., “raking in money” — the rake is a 17th-century hay tool).

Common traps in the options

Partial-truth distractors: an option captures one word of the idiom’s sense (e.g., for “at one’s own expense”, choosing “at great expense” instead of “at personal cost/disadvantage”).
Sound-alike pairs: “beat around the bush” (hesitate) vs. “hit the nail on the head” (be precise); “once in a blue moon” (rarely) vs. “once upon a time” (narrative opener).
Grammatically correct but semantically wrong: an idiom fits the slot’s grammar but reverses or weakens the intended meaning.

Worked micro-example

Sentence: “Despite the looming deadline, Raza decided to ______ and submitted the report a week late.” The correct idiom is “bite the bullet” (face an unpleasant task with resolve) — not “bite the dust” (be defeated) or “bite off more than he can chew” (take on too much). The exam tests whether the candidate reads the resolve cue, not just the word “bite”.

Strategy on exam day

NAT-I Verbal sits inside a 120-minute paper with ~20 MCQs in the Verbal block; budget 45–60 seconds per idiom item. Eliminate two options by meaning, then verify the survivor against the sentence’s tone (positive/negative/formal).

Mistake	Why it costs marks	Fix
Literal translation	”Break the ice” ≠ shatter ice	Learn the figurative meaning as a unit
Confusing near-pairs	Two idioms, opposite senses	Memorise each separately with a cue sentence
Ignoring fixed form	Rewriting the idiom changes it	Treat the phrase as one vocabulary chunk
Guessing from grammar alone	Sentence can read smoothly but mean nothing	Match meaning first, grammar second

Practice prompts

Choose the idiom that best fills the blank: “After the long negotiation, both parties decided to ______ and split the profit equally.” (Answer key: “bury the hatchet” / “split the difference”.)
Identify the meaning of “to go the extra mile”: (a) travel further, (b) make extra effort, (c) spend more money, (d) take a detour.

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Idioms and Phrases