By the book Meaning in English
expression
ˈbaɪ/ /ˈðə/, /ðə/, /ði/ /ˈbʊk
BYE thuh BOOK
bˈaɪ/ /ðə, ði/ /bˈʊk
BYE thuh BOOK
Definition
To do something exactly according to the rules, instructions, or established procedures, without improvising or being flexible.
Usage & Nuances
Common in work, police, legal, or official settings. Implies strict rule-following, sometimes criticized as being inflexible. Frequently used with verbs like 'do', 'work', 'act', 'play', 'go'.
Spanish: al pie de la letra - según las reglasPortuguese (BR): ao pé da letra - conforme as regrasPortuguese (PT): à risca - conforme as regrasChinese (Simplified): 严格按照规章 - 按规矩办事Chinese (Traditional): 嚴格按照規章 - 按規矩辦事Hindi: किताब के अनुसार - नियमों के अनुसारArabic: حسب القوانين - وفق القواعدBengali: নিয়ম মেনে - বই অনুযায়ীRussian: по инструкции - по правиламJapanese: ルール通りに - マニュアル通りにVietnamese: theo đúng quy định - theo sách vởKorean: 원칙대로 - 규정대로Turkish: kurallara uygun olarak - harfi harfineUrdu: قواعد کے مطابق - کتاب کے اصولوں کے مطابقIndonesian: sesuai aturan - sesuai prosedur
Example Sentences
She always does everything by the book at work.
basic
The police officer acted by the book during the investigation.
basic
We have to follow the rules and do it by the book.
basic
He’s not by the book—he comes up with creative solutions.
natural
Don’t worry, I’ll handle it by the book so we don’t get in trouble.
natural
Sometimes being too by the book can slow things down.
natural