/ Dictionary / Index S sea gate: Meaning and Definition of Find definitions for: sea' gate" Pronunciation: [key] a navigable channel giving access to the sea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea front sea gauge 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