clock on clock off • clock out · · · Info · Definitions · Synonyms · Characters · · clock on · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (verb) register one's arrival at work. Synonyms: clock in, punch in, clock on. · · Verb Definition 1 Synonyms · · · clock in · · Synonym 1 punch in · · Synonym 2 Characters · · space U+0020 c latin small letter c U+0063 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F