alarm clock alarm bird • alarm gauge · · · Info · Definitions · Synonyms · Characters · · alarm clock · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a clock that wakes a sleeper at some preset time. Synonyms: alarm clock, alarm. · · Noun Definition 1 Synonyms · · · alarm · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 k latin small letter k U+006B l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072