clearance C2+ Topic:Space, Position & Direction US /ˈklɪrəns/ UK /ˈklɪərəns/ See IPA manual Meanings 1 noun official permission, or the space between two objects The pilot received clearance for takeoff. Thesaurus Synonyms 1 noun · official permission, or the... permissionauthorizationapprovalspacegapmarginheadroom ↔ Opposites obstructionprohibition Word family Related forms clearclarifyclearing Etymology AI details From clear + -ance. Clear is from Old French cler/clair, from Latin clarus ('clear, bright'). clarus Latin View etymology graph -> Topics Space, Position & Direction External links Cambridge Dictionary Wiktionary Google Images # clearance **Type:** Word **Level:** C2+ **Part of speech:** noun **IPA (US):** /ˈklɪrəns/ **IPA (UK):** /ˈklɪərəns/ ## Meanings 1. official permission, or the space between two objects ## Examples - The pilot received clearance for takeoff. ## Synonyms - permission - authorization - approval - space - gap - margin - headroom ## Antonyms - obstruction - prohibition ## Related Forms - clear - clarify - clearing ## Roots and Affixes - Root: clarus ## Etymology From clear + -ance. Clear is from Old French cler/clair, from Latin clarus ('clear, bright'). ## AI Etymology Clearance comes from clear + -ance. Clear is from Old French cler/clair, from Latin clarus ('clear, bright'). The historical trail runs through Latin clarus. Morphologically, the surface form is analyzable into prefixes, suffixes, compounds, or participial endings that carry part of the history. In modern use it means official permission, or the space between two objects. Related forms include clear, clarify, clearing. ## Topics - Space, Position & Direction markdown