This idiom "not know the meaning of the word "likely stems from the idea that when someone is completely unfamiliar with a concept or word, it might as well be in a foreign language or dialect. This expression is used when people want to highlight that someone is so unfamiliar with a topic that they cannot even comprehend basic terms associated with it.

What is the origin of the idiom "not know the meaning of the word" and when to use it?

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to {not} (even|) [know] the meaning of the word

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Definiția și sensul cuvântului „not (even) know the meaning of the word” în engleză

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