Noun hr has 1 sense
  1. hour, hr, 60 minutes - a period of time equal to 1/24th of a day; "the job will take more than an hour"
    --1 is a kind of time unit, unit of time
    --1 is a part of day, twenty-four hours, solar day, mean solar day
    --1 has parts:
     half-hour, 30 minutes; quarter-hour, 15 minutes; minute, min; quarter
    --1 has particulars: sidereal hour; man hour, person hour
,
TOP