Breadcrumb Home > Thesaurus > M Synonyms of memorandum Find synonyms for: Noun 1. memo, memorandum, memoranda, note usage: a written proposal or reminder WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of memorandum (Dictionary) ✖ Related Content Daily Word Quiz: evanescent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language