/ Dictionary / Index S sublanguage: Meaning and Definition of Find definitions for: sub•lan•guage Pronunciation: (sub'lang"gwij), [key] — n. a subvariety of language used in a particular field or by a particular social group and characterized esp. by distinctive vocabulary. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subkingdom sublapsarianism 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