
1) Adventurer 2) Dutch novel 3) Explorer 4) Louis antoine de bougainville
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https://www.crosswordclues.com/clue/bougainville

[
n] - French explorer who circumnavigated the globe accompanied by scientists (1729-1811) 2. [n] - the largest of the Solomon Islands
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http://www.webdictionary.co.uk/definition.php?query=Bougainville
Louis Antoine de Bougainville noun French explorer who circumnavigated the globe accompanied by scientists (1729-1811)
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https://www.encyclo.co.uk/local/20974

Autonomous island, formerly of Papua New Guinea, which with Buka Island and other smaller islands forms the province of North Solomon; area 10,620 sq km/4,100 sq mi; population (2000) 175,200. It is the largest of the Solomon Islands archipelago. The capital is Arawa. The land is volcanic and mountainous, with the Emperor Range in the n...
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https://www.encyclo.co.uk/local/21221

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).
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https://www.infoplease.com/dictionary/bougainville
No exact match found.