What are Idioms?
Idioms are phrases or expressions whose meaning cannot be understood from the individual words alone. In idioms, the figurative meaning — what native speakers intend — differs from the literal meaning of the words. For example, 'It's raining cats and dogs' doesn't mean animals are falling from the sky; it means rain is very heavy.
An idiom is a group of words whose meaning is not the sum of its parts — 'raining cats and dogs' (heavy rain), 'break a leg' (good luck), 'piece of cake' (easy). Idioms are figurative, not literal.
Step-by-step worked examples
Interpret the idiom: 'She is burning the midnight oil.'
Literal: burning oil at midnight — doesn't happen. Idiom meaning: She is working very hard, late into the night. Context: 'Despite the deadline, she is burning the midnight oil to finish the project.'
What does 'piece of cake' mean?
Literal: a slice of cake — actual food. Idiom meaning: something very easy to do. Example: 'The math test was a piece of cake — I finished in 20 minutes.'
Explain: 'He is an early bird.'
Literal: he is a bird that wakes early — nonsense. Idiom meaning: he is a person who wakes up and starts work early. Example: 'My father is an early bird; he's always up at 5 AM.'
Flashcards
Quick quiz
Q1.What is 'piece of cake'?
Q2.If someone says 'hit the books', they mean…
Q3.Which is NOT an idiom?
Q4.What does 'under the weather' mean?
The full card deck, worked steps and AI-tutor support for “What are Idioms?” are in Notek — study by hand before your exam.
Common mistakes
Taking idioms literally — 'raining cats and dogs' means real animals fall from the sky. — Correct: Idioms are figurative — 'raining cats and dogs' simply means heavy rain.
Thinking 'break a leg' is wishing someone injury. — Correct: 'Break a leg' is a figurative expression wishing good luck, especially in theater.
Confusing 'piece of cake' with actual difficulty. — Correct: 'Piece of cake' means something is extremely easy, not hard.
Assuming every word contributes to idiom meaning. — Correct: In idioms, individual words often don't contribute their literal meaning to the overall phrase.
FAQ
What is the difference between an idiom and figurative language?
Figurative language is any non-literal use of words (metaphor, simile, hyperbole). Idioms are a specific type of figurative expression that native speakers use conventionally — 'raining cats and dogs' is both figurative AND an idiom.
How many idioms are in English?
There are thousands of idioms in English. Learners typically master 200–500 common ones for everyday and professional use.
How do I know if something is an idiom?
If the literal meaning of the words doesn't make sense, but native speakers say it anyway, it's probably an idiom. Check a dictionary or idiom reference.
Do all English speakers know the same idioms?
Most know common ones, but regional, generational, and cultural idioms vary. British, American, Australian English have different idioms.