/ Dictionary / Index B bicentenary: Meaning and Definition of Find definitions for: bi•cen•ten•ar•y Pronunciation: (bī"-sen-ten'u-rē, bī-sen'tn-er"ē esp. Brit. bī"sen-tē'nu-rē), [key] — pl. -ar•ies. bicentennial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bicentenary (Thesaurus) bicaudate bicentennial Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language