| Acronym | Definition |
|---|
| Exa➣10^18 (one quintillion) |
| Exa➣Excellent Architecture |
| Exa➣Eyecandy Acceleration Architecture |
| Exa➣Enterprise X-Architecture (IBM) |
| Exa➣Exasperator |
| Exa➣Execution Agency |
| Exa➣Elicited Xenoreactive Antibodie (transplantation rejection proteins) |
| Exa➣Exchequer and Audit Department (Public Records Office of Northern Ireland; Department of Culture, Arts, and Leisure; UK) |