The idiom "to one's fingertips" is rooted in the idea that someone possesses a deep or thorough understanding or mastery of something, as if they have knowledge or expertise extending to their very fingertips. While the precise origin of the phrase is not clear, it has been used in English for centuries to convey a high level of competence or familiarity. This phrase is used to emphasize that someone is exceptionally knowledgeable or skilled in a particular area. It suggests that their expertise is so extensive that it permeates every aspect of their being.

What is the origin of the idiom "to one's fingertips" and when to use it?

Определение и значение слова «to one's fingertips» на английском языке

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