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Meaning of write the book | Babel Free

Verb CEFR C1

Definitions

To be an authoritative expert on some specified topic.

idiomatic, informal

Examples

“Do I know how to play chess? I wrote the book on it!”

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

write up write-off writed writeing writes writes checks one can't cash