/ Dictionary / Index S slanguage: Meaning and Definition of Find definitions for: slan•guage Pronunciation: (slang'gwij), [key] — n. slang; a vocabulary of slang. language employing much slang. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: slanguage (Thesaurus) slang slangy Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language