/ Dictionary / Index S sixty-six: Meaning and Definition of Find definitions for: six•ty-six Pronunciation: (siks'tē-siks'), [key] — n. a cardinal number, 60 plus 6. a symbol for this number, as 66 or LXVI. a set of this many persons or things. a card game that is played by two players with a 24-card pack made by removing all cards below the nines from a regular 52-card pack, the object being to score 66 points before one's opponent. —adj. amounting to 66 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sixty-six (Thesaurus) sixty-seventh sixty-sixth Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language