by the book
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Strictly according to the rules.
Where it’s used:
Used
Widespread English
Examples
' It's all the same with these women who think they're heading for the top.
It is not a consortium of millionaires, but was set up by the leaders of the developed nations at the Bretton Woods conference in 1944.
British National Corpus sentence via the MAGPIE corpus (CC BY 4.0, retrieved 2026-07-30)
Sources & notes
Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Figurative class: Metaphor (PIE-English corpus, CC BY 4.0, retrieved 2026-07-31).
Common questions
What does “by the book” mean?
Strictly according to the rules.
Is “by the book” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.