| Acronym | Definition |
|---|
| VAAC➣Volcanic Ash Advisory Center |
| VAAC➣Valle Arriba Athletic Club (Venezuela) |
| VAAC➣Volvo Ambient Air Cleaner (Volvo vehicles) |
| VAAC➣Veterans Affairs Advisory Committee (Washington) |
| VAAC➣Vectored-thrust Aircraft Advanced Flight Control (active control technology research) |
| VAAC➣Viral Antigen-Antibody Complex |