/ Dictionary / Index S sextern: Meaning and Definition of Find definitions for: sex•tern Pronunciation: (sek'sturn), [key] — n. Bookbinding. six gathered sheets folded in two for binding together. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sextant sextet 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