| Acronym | Definition |
|---|
| CS1➣Counter Strike 1 (video game) |
| CS1➣Computer Science 1 (class) |
| CS1➣Community Server 1 (internet) |
| CS1➣Concurrent Session 1 |
| CS1➣Community School #1 (Mission Hills, KS; elementary school) |
| CS1➣Commissaryman First Class (Naval Rating) |