/ Dictionary / Index S seabed: Meaning and Definition of Find definitions for: sea•bed Pronunciation: (sē'bed"), [key] — n. seafloor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seabed (Thesaurus) seabeach Seabee Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language