/ Dictionary / Index F fps: Meaning and Definition of Find definitions for: fps Pronunciation: [key] feet per second. foot-pound-second. f.p.s. Pronunciation: [key] feet per second. foot-pound-second. frames per second. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fps (Thesaurus) FPO fpsps Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language