idea

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clue

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The idiom "off the top of one's head" originates from the idea that information or ideas are presented without deep thought or prior planning. It is used to describe providing a quick response or answer based on one's immediate knowledge or intuition, rather than relying on research or careful consideration. This phrase emphasizes spontaneity and a lack of formal preparation.

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

off the top of {one's} head

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offhand

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to hear of

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The idiom "know something like the back of one's hand" suggests that someone is intimately familiar with a subject or topic, just as they are with the physical features of their own hand. It implies a deep and thorough knowledge of the subject. This expression is used to emphasize how well someone knows or understands something, indicating a high level of familiarity and expertise.

What is the origin of the idiom "know something like the back of one's hand" and when to use it?

to [know] {sth} like the back of {one's} hand

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sure

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positive

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by heart

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The idiom "know someone or something inside out" suggests an in-depth understanding or familiarity with a person, object, or subject. It implies knowing every detail, characteristic, or aspect thoroughly, as if one has explored its inner workings. This expression is used to emphasize a high level of knowledge, expertise, or familiarity with someone or something. It signifies that the individual has a comprehensive understanding, leaving no hidden aspects or mysteries.

What is the origin of the idiom "know someone or something inside out" and when to use it?

to [know] {sb/sth} inside out

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next to nothing

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faint

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certain

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Here you will find the vocabulary from Unit 1 - Lesson 2 in the Total English Advanced coursebook, such as "offhand", "hear of", "faint", etc.

Словарный запас Unit 1 - Lesson 2 из Total English Advanced