| Acronym | Definition |
|---|
| TWIS➣This Week In Science (UC Davis radio show) |
| TWIS➣Tennessee Web Immunization System (Tennessee Department of Health; Nashville, TN) |
| TWIS➣That's What I Said |
| TWIS➣Tourism With Integrated System (Italy) |
| TWIS➣This Week in Sarasota (calendar website; Florida) |
| TWIS➣Tactical WWMCC Information System |