/ Dictionary / Index T third-party software: Meaning and Definition of Find definitions for: third'-par"ty soft'ware Pronunciation: [key] — Computers. Computers. software created by programmers or publishers independent of the manufacturer of the hardware for which it is intended. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. third party procedure third person Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language