WordValeby the book
strictly according to the rules
In more detail
according to the rules or official procedures; following established guidelines exactly
Alternatively: a set of rules or methods (noun phrase)
Examples
- The manager insists on doing everything by the book, even if it takes longer.
- When hiring, the company follows procedures by the book.
How to use by the book
Used to describe strict adherence to official procedures or established guidelines, often implying a formal or rigid approach. It can be neutral or slightly negative, suggesting inflexibility or lack of creativity. Common in professional, legal, and organizational contexts.
Common phrases
- do something by the book
- go by the book
- run something by the book
- follow by the book
- play it by the book
Synonyms
by the rules · according to protocol · according to regulations · by the rules · strictly according to procedure
Opposites
off the books · under the table · informally
A common mistake
Learners sometimes confuse it with 'by the rules of the book' or try to use it as a noun without 'the' (e.g., 'by book' instead of 'by the book').
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