idea

https://tts.langeek.co/read?text=aWRlYQ&hash=8c19d0996920bada4b75bccf7307f12cae0d6108&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=aWRlYQ&hash=dbc6baef4ee5d41494be8a46f11e02c34a571445&lang=en&cache-only=0&driver=googletts&accent=GB

clue

https://tts.langeek.co/read?text=Y2x1ZQ&hash=fa2650928a469936ae4623995cc653220eb0b612&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=Y2x1ZQ&hash=5277927defbe82f3a21294f91f5c684a87d1ce49&lang=en&cache-only=0&driver=googletts&accent=GB

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

https://tts.langeek.co/read?text=b2ZmIHRoZSB0b3Agb2Ygb25lJ3MgaGVhZA&hash=090c9433d827e1a5352c1e7d36ac1e60f12bcdd0&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=b2ZmIHRoZSB0b3Agb2Ygb25lJ3MgaGVhZA&hash=f43590b436807932afcd410f7e809119f48439b0&lang=en&cache-only=0&driver=googletts&accent=GB

offhand

https://tts.langeek.co/read?text=b2ZmaGFuZA&hash=6d4ad112c3b7ca52beddd950479de54ed03350ee&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=b2ZmaGFuZA&hash=788455b274b012bdb6915357503f71cf85a136e3&lang=en&cache-only=0&driver=googletts&accent=GB

to hear of

https://tts.langeek.co/read?text=dG8gaGVhciBvZg&hash=781ddad4357a92a8b65241422f756e7b1c442957&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=dG8gaGVhciBvZg&hash=c5ff489a8ea17e34d74cf7e9839b9de8e50770d6&lang=en&cache-only=0&driver=googletts&accent=GB

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

https://tts.langeek.co/read?text=dG8ga25vdyBzb21ldGhpbmcgbGlrZSB0aGUgYmFjayBvZiBvbmUncyBoYW5k&hash=b3573cfca2a11f818c2739aebcca6110e28ce720&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=dG8ga25vdyBzb21ldGhpbmcgbGlrZSB0aGUgYmFjayBvZiBvbmUncyBoYW5k&hash=137f9c15377e417594588080317c3fe57d79fc22&lang=en&cache-only=0&driver=googletts&accent=GB

sure

https://tts.langeek.co/read?text=c3VyZQ&hash=24e9c46f2746901e9f244dca06c7c3f759998769&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=c3VyZQ&hash=01455ec43b678048afaab6fd0961bf9f84c02bcf&lang=en&cache-only=0&driver=googletts&accent=GB

positive

https://tts.langeek.co/read?text=cG9zaXRpdmU&hash=649c42bb53fa423877979642becef728c26bf170&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=cG9zaXRpdmU&hash=3e87d745820604d8eda9f5709854309c5b1b7236&lang=en&cache-only=0&driver=googletts&accent=GB

by heart

https://tts.langeek.co/read?text=YnkgaGVhcnQ&hash=5acef9daa65189f1911a6fa8b9190a40586c24c5&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=YnkgaGVhcnQ&hash=8183c27e44d52a2a73ecc59feb957bc7441f5d9e&lang=en&cache-only=0&driver=googletts&accent=GB

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

https://tts.langeek.co/read?text=dG8ga25vdyBzb21lYm9keSBvciBzb21ldGhpbmcgaW5zaWRlIG91dA&hash=85ea279116e2119801011c8285b459e341fc3f3a&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=dG8ga25vdyBzb21lYm9keSBvciBzb21ldGhpbmcgaW5zaWRlIG91dA&hash=efc252113e08c408e50019cf07928af1f37e4d18&lang=en&cache-only=0&driver=googletts&accent=GB

next to nothing

https://tts.langeek.co/read?text=bmV4dCB0byBub3RoaW5n&hash=d858f3ddc996f2ef548fb352c824cbad415162a3&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=bmV4dCB0byBub3RoaW5n&hash=99288b7e99560ff0d9928cce34e08e0cd9c0fa5c&lang=en&cache-only=0&driver=googletts&accent=GB

faint

https://tts.langeek.co/read?text=ZmFpbnQ&hash=ce9a8115bd4a55ff89ef0271a1e5075eace4c1ca&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=ZmFpbnQ&hash=b70f840249f6285de8a6bc6a21c5cfc5153f4553&lang=en&cache-only=0&driver=googletts&accent=GB

certain

https://tts.langeek.co/read?text=Y2VydGFpbg&hash=acaf979a223738d905863ee34e26a9667f261082&lang=en&cache-only=0&driver=googletts

https://tts.langeek.co/read?text=Y2VydGFpbg&hash=565d328d7c90ce4e2122ccd57bb738e1b8f719ea&lang=en&cache-only=0&driver=googletts&accent=GB

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

Total English Advanced ユニット1 - レッスン2の語彙