rush hour rush grass • rush lily · · · Info · Definitions · Characters · · rush hour · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) the times at the beginning and end of the working day when many people are traveling to or from work. Synonyms: rush hour. · · Noun Definition 1 Characters · · space U+0020 h latin small letter h U+0068 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075