/ Thesaurus / L Synonyms of lunar month Find synonyms for: Noun1. lunar month, moon, lunation, synodic month, monthusage: the period between successive new moons (29.531 days)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language