Added 9 October 2026 hr noun Categories: TimeUncommon Words noun ! Definition from WordNet 3.1, Princeton University. More about hr at Wordnik → Where our words come from → A period of time equal to 1/24th of a day. the job will take more than an hour Related Words: hourbhph.pihpkwpersonnelstaffingrecruitmenthiringworkforce Back to today's word