- Organization of American States
- Organisation de l'armée secrète; an organization of European settlers in Algeria who opposed Algerian independence by acts of terrorism (1961–63)
| 单词 | oas |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 OAS,
Collins Concise English Dictionary © HarperCollins Publishers:: OAS abbreviation for
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