List of English Idioms

A list of common English idioms, sortable by starting letter

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Your own worst enemy

Your own worst enemy means that a person's own actions or decisions cause them more problems than anyone else does. It describes someone who keeps making choices that work against their own success or happiness.

The idea behind the phrase is that sometimes the greatest obstacle a person faces is themselves. The expression became common in English as a way to describe self-sabotaging behavior.

He had the talent to succeed, but his constant procrastination made him his own worst enemy.

Photo of a soldier aiming a rifle

Zero in on

The idiom zero in on means to focus closely on something. Attention becomes more precise and directed. The phrase comes from "zeroing" the sights on a gun to accurately hit the target.

Let's zero in on the main problem.