10 Common English Idioms and What They Mean

Idioms are phrases whose meaning cannot be worked out simply by looking at the individual words. They are a natural part of everyday English, and knowing the most common ones makes a real difference to how well you understand native speakers and how natural you sound yourself.

1. Hit the nail on the head

This means to describe something exactly correctly or to identify the real issue. You hit the nail on the head when you said the problem was communication.

2. Under the weather

To feel under the weather means to feel slightly ill or not quite yourself. I am feeling a bit under the weather today so I might leave early.

3. Break the ice

To break the ice means to do or say something to make people feel more relaxed in a social situation. The team leader told a joke to break the ice at the start of the meeting.

4. Bite the bullet

To bite the bullet means to endure a painful or difficult situation because it is unavoidable. I did not want to have that conversation, but I just had to bite the bullet.

5. Let the cat out of the bag

To let the cat out of the bag means to accidentally reveal a secret. She let the cat out of the bag by mentioning the surprise party.

6. Sit on the fence

To sit on the fence means to avoid taking a side or making a decision. You cannot sit on the fence forever; you need to decide.

7. Once in a blue moon

This means very rarely. I only eat fast food once in a blue moon.

8. Spill the beans

Similar to letting the cat out of the bag, to spill the beans means to reveal information that was meant to be secret. Who spilled the beans about the new product launch?

9. Burn the midnight oil

To burn the midnight oil means to work late into the night. She has been burning the midnight oil to finish the proposal.

10. The ball is in your court

This means that it is now someone else's turn to take action or make a decision. I have sent the proposal. The ball is in their court now.

Tips for Learning Idioms

Do not try to memorise idioms in isolation. Instead, learn them in context by noticing them in the films, podcasts, and conversations you encounter. Once you understand an idiom, try using it naturally in your own speech. The more you use them, the more your English will start to sound genuinely fluent.

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