hour

1. (time) A unit of time of one twenty-fourth of a day (sixty minutes).Examples: "Holonyms: day < week < megasecond < fortnight < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond"; "Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond"; "Near-synonym: microcentury (humorous approximation)"Synonyms: stound

2. (poetic) The time.Examples: "The hour grows late and I must go home."poetic

3. (military, in the plural) Used after a two-digit hour and a two-digit minute to indicate time.Examples: "By 1300 hours the position was fairly clear."in-plural

4. (chiefly in the plural) The amount of labor demanded by an employer in terms of time.Examples: "I asked my manager for more hours."; "The shop wasn't giving me enough hours so I started searching for a second job."in-plural

5. (Christianity, in the plural) The set times of prayer, the canonical hours, the offices or services prescribed for these, or a book containing them.in-plural

6. (chiefly US) A distance that can be traveled in one hour.Examples: "This place is an hour away from where I live."US