/ Dictionary / Index F Formosa: Meaning and Definition of Find definitions for: For•mo•sa Pronunciation: (fôr-mō'su), [key] — n. Taiwan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: formosa (Thesaurus) formol Formosa Strait Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language