I am a phrase that means something completely different from my individual words. I make no literal sense but every native speaker understands me. I am the hardest part of a language to learn. What am I?

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Accepted Answer

An Idiom. Idioms are fixed phrases whose meanings cannot be deduced from the individual words — for example, 'it's raining cats and dogs'. They are culturally embedded and are consistently identified as the hardest aspect of a language for non-native speakers to master.

"I am a phrase that means something completely different from my individual words. I make no literal sense but every native speaker understands me. I am the hardest part of a language to learn. What am I?"

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