What is another word for by the book?
Pronunciation: [ba͡ɪ ðə bˈʊk] (IPA) 
The phrase "by the book" means doing something strictly following the rules or guidelines. There are several synonyms for this expression that can be used interchangeably depending on the context. The phrase "by the rules" is a commonly used synonym for "by the book" and can refer to following established guidelines for proper conduct. Another synonym for "by the book" is "by the manual" which implies following specific instructions laid out in a standardized format. Alternatively, one could use the phrase "in accordance with regulations" when referring to following strict protocol or guidelines set out by law or policy. Ultimately, the key is to communicate that something is being done precisely as it is supposed to be done.
