rule book rule • ruled · · · Info · Definitions · Synonyms · Characters · · rule book · · Text Common · · Latin · · Scripts 9 · · Length 3 · · Syllables Definitions · · · (noun) a collection of rules or prescribed standards on the basis of which decisions are made. Synonyms: book, rule book. Example: "They run things by the book around here." · · Noun Definition 1 Synonyms · · · book · · Synonym 1 Characters · · space U+0020 b latin small letter b U+0062 e latin small letter e U+0065 k latin small letter k U+006B l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 u latin small letter u U+0075