/ Dictionary / Index S silent service: Meaning and Definition of Find definitions for: si'lent serv'ice Pronunciation: [key] — (sometimes caps.) the submarine service (usually prec. by the). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. silent partner silent treatment Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language