All idioms
idiom

An open book

an OH-pen BUK

/æn ˈoʊpən bʊk/

Listen

Hear it in a clear American voice. Slow it down to catch each syllable.

Syllable breakdown

anopenbook

Dictionary meaning

A person who is completely transparent and easy to understand, or a topic about which everything is already known and accessible.

Examples

  • He's an open book — what you see is exactly what you get.

Learn one new pronunciation a day

Get a word, name or idiom like “An open book” in your inbox — daily or weekly, free. Unsubscribe any time.

Something wrong? Suggest a correction