/ Dictionary / Index S subdivision: Meaning and Definition of Find definitions for: sub•di•vi•sion Pronunciation: (sub'di-vizh"un), [key] — n. the act or fact of subdividing. a product of subdividing, as a section of a department. a portion of land divided into lots for real-estate development. a category of related classes within a division or phylum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: subdivision (Thesaurus) subdivide subdominant 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