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Open book

Idiom Curiosity

Meaning

Someone who is easy to understand or transparent.

Example Sentences

"She’s an open book; you always know what she’s thinking."

Related Expressions

blank mind

unable to think clearly or remember something

beyond a shadow of a doubt

without any doubt; completely certain

have your jaw drop

to be extremely surprised or shocked

take one's breath away

to amaze or astonish someone greatly

back up

to support or to make a copy of important data

turn the corner

to pass a difficult stage and begin to improve