Added 9 October 2026 clearance /ˈklɪə̯.ɹəns/ noun Categories: Describing WordsActionsUncommon Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about clearance at Wordnik → Where our words come from → The distance by which one thing clears another; the space between them. Vertical space available to allow easy passage under something. Permission to proceed. the plane was given clearance to land Related Words: headwayheadroomclearingremovingdisposalremoveremovalevacuationdecommissioningdeactivationeliminationdischarge Back to today's word