/ Dictionary / Index S synodic month: Meaning and Definition of Find definitions for: synod'ic month'. Pronunciation: [key] See under(def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. synodic synoicous Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language