/ Dictionary / Index S Sixtine: Meaning and Definition of Find definitions for: Six•tine Pronunciation: (siks'tēn, -tin, -tīn), [key] — adj. Sistine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sixtieth Sixtus I Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language