[ˌɒstrə(ʊ)ˈniːzɪən, -ʒ(ə)n ˌɔː]adjective
of, relating to, or denoting a family of languages spoken in an area extending from Madagascar in the west to the Pacific islands in the east
澳斯特罗尼西亚诸语言的（包括西起马达加斯加东到太平洋诸岛的地区）。 亦称 Malayo-Polynesian
noun
[mass noun]this family of languages
澳斯特罗尼西亚诸语言

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用法
Austronesian languages are spoken by about 140 million people, of whom all but 1 million speak a language of the Indonesian group, which includes Indonesian, Javanese, Tagalog, and Malagasy. The other groups are Micronesian, Melanesian, and Polynesian, scattered across the islands of the South Pacific

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语源
from German austronesisch, based on Latin australis 'southern' (see austral) + Greek nēsos 'island'