/ Dictionary / Index S SL: Meaning and Definition of Find definitions for: SL Pronunciation: [key] See s.l. Pronunciation: [key] salvage loss. without place (of publication). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sl (Thesaurus) skywriting SLA Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language