Breadcrumb Home > Thesaurus Cite Synonyms of clearance Find synonyms for: Noun1. clearance, interval, separationusage: the distance by which one thing clears another; the space between them2. headroom, headway, clearance, room, way, elbow roomusage: vertical space available to allow easy passage under something3. clearance, license, permission, permitusage: permission to proceed; "the plane was given clearance to land"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: clearance (Dictionary) Related Content Daily Word Quiz: polemic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index