Breadcrumb Home > Thesaurus Cite Synonyms of casement Find synonyms for: Noun1. casement, sash, window sashusage: a window sash that is hinged (usually on one side)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: casement (Dictionary) Related Content Daily Word Quiz: erpsichore 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