Breadcrumb Home > Thesaurus > S Synonyms of semaphore Find synonyms for: Noun 1. semaphore, apparatus, setup usage: an apparatus for visual signaling with lights or mechanically moving arms Verb 1. semaphore, sign, signal, signalize, signalise usage: send signals by or as if by semaphore 2. semaphore, communicate, intercommunicate usage: convey by semaphore, of information WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of semaphore (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: demagogue Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language