/ Dictionary / Index S spiff: Meaning and Definition of Find definitions for: spiff Pronunciation: (spif), [key] to make spiffy (usually fol. by up): Let's spiff up this office with new furniture. spiff Pronunciation: (spif), [key] —n. a bonus or other form of remuneration given to retail salespeople for promoting the products of a particular manufacturer. —v.t. to reward (a salesperson) with a spiff. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spiff (Thesaurus) spier spiffy Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language