IAAAIntegrated Advanced Avionics for Aircraft 飞行器用先进集成航空电子学IAAAAIntercollegiate Association of Amateur Athletes of America 美国学院体育业余爱好者协会IAAABBPInternational Association of African and American Black Business People 国际非洲与美洲黑人商人协会USNIAAA[医][=United States National Institute on Alcohol Abuse and Alcoholism]美国国家酗洒与酒精中毒研究会