What’s an idiom? How is it different from a proverb?
An idiom is a phrase or expression that has a meaning that in most cases cannot be deduced directly from the individual words in that phrase or expression.
For example, the idiom ‘bite off more than you can chew’ doesn’t mean you bite more than a mouthful of a cake or something else and then struggle to chew. It means you try to do something that is too difficult for you.
How are they different from proverbs? Proverbs are well-known sayings, stating a general truth or advice. For example, the proverb ‘a picture is worth thousand words’ is a general truth. The idiom ‘bite off more than you can chew’, however, is neither a general truth nor an advice.