/ Dictionary / Index S seacoast: Meaning and Definition of Find definitions for: sea•coast Pronunciation: (sē'kōst"), [key] — n. the land immediately adjacent to the sea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seacoast (Thesaurus) sea chest seacock Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language