| Acronym | Definition |
|---|
| ETAS➣English Teachers Association of Switzerland |
| ETAS➣Emerging Technology Advisory Service (International Data Corporation) |
| ETAS➣Elevated Target Acquisition System |
| ETAS➣Effective True Airspeed |
| ETAS➣Emergency Technical Assistance Support (telecommunications) |
| ETAS➣Escort Towed Array System |
| ETAS➣Engineering Tools Applications and Services |
| ETAS➣Environment for Trusted Ada Software |