mug book muga silk • mugearite · · · Info · Definitions · Synonyms · Characters · · mug book · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) a file of mug shots (pictures of criminals that are kept on file by the police). Synonyms: mug file, mug book. · · Noun Definition 1 Synonyms · · · mug file · · Synonym 1 Characters · · space U+0020 b latin small letter b U+0062 g latin small letter g U+0067 k latin small letter k U+006B m latin small letter m U+006D o latin small letter o U+006F u latin small letter u U+0075