| Acronym | Definition |
|---|
| TIAS➣The Internet Antique Shop |
| TIAS➣Telematic Internetwork Abstract Service |
| TIAS➣Treaties and Other International Acts Series (compendium of treaties, United States) |
| TIAS➣Try It and See (chat) |
| TIAS➣Training Information Access System (US FEMA) |
| TIAS➣Target Identification & Acquisition System |
| TIAS➣True Indicated Air Speed (aviation) |
| TIAS➣Treatment Indicated with Aspirin & Statin (medical treatment of transient ischaemic attacks) |