/ Dictionary / Index S sixteen: Meaning and Definition of Find definitions for: six•teen Pronunciation: (siks'tēn'), [key] — n. a cardinal number, ten plus six. a symbol for this number, as 16 or XVI. a set of this many persons or things. —adj. amounting to 16 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sixteen (Thesaurus) sixte 16-gauge 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