/ Dictionary / Index S social unit: Meaning and Definition of Find definitions for: so'cial u'nit Pronunciation: [key] a person or a group of persons, as a family, functioning as a unit in society. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. social studies Social War 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