/ Dictionary / Index B Bougainville: Meaning and Definition of Find definitions for: Bou•gain•ville Pronunciation: (b-gan-vēl' for 1 b'g&schwan-vil&sec, bō'-, Fr. b-gan-vēl' for 2), [key] 1729–1811, French navigator. the largest of the Solomon Islands, in the W Pacific Ocean: part of Papua New Guinea. 78,000; 4080 sq. mi. (10,567 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bougainville (Thesaurus) bouffe bougainvillea 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