/ Dictionary / Index S sea biscuit: Meaning and Definition of Find definitions for: sea' bis"cuit Pronunciation: [key] ship biscuit; hardtack. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seabird sea blite 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