Breadcrumb Home > Thesaurus > E Synonyms of ell Find synonyms for: Noun 1. ell, annex, annexe, extension, wing usage: an extension at the end and at right angles to the main building WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ell (Dictionary) ✖ Related Content Daily Word Quiz: derogate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language