- Bougainville, Louis Antoine de Bougainville - French explorer who circumnavigated the globe accompanied by scientists (1729-1811)
--1 is a kind of explorer, adventurer
- Bougainville - the largest of the Solomon Islands; a province of Papua New Guinea
--2 is a kind of island
--2 is a part ofSolomon Islands; Papua New Guinea, Independent State of Papua New Guinea