/ Dictionary / Index S SRO: Meaning and Definition of Find definitions for: SRO Pronunciation: [key] single-room occupancy. standing room only. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Śri-Vaishnavism SRS Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language