/ Dictionary / Index S spirantize: Meaning and Definition of Find definitions for: spi•rant•ize Pronunciation: (spī'run-tīz"), [key] — -ized, -iz•ing. to change into or pronounce as a spirant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spirant spire Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language