1. (noun)hour, hr, 60 minutes a period of time equal to 1/24th of a day Synonyms: hour, time of day, minute, hr
2. (noun)hour, time of day clock time Synonyms: hour, time of day, minute, hr
3. (noun)hour a special and memorable period Synonyms: time of day, minute, hr
4. (noun)hour, minute distance measured by the time taken to cover it Synonyms: minute, bit, instant, min, minute of arc, moment, mo, second, arcminute, time of day, hour, hr