| Acronym | Definition |
|---|
| TOOL | Time of Our Lives |
| TOOL | Tycoon Object Oriented Language |
| TOOL | The Order of Light (Cybernations gaming group) |
| TOOL | The Open Opinion Layer (article; First Monday; peer reviewed internet journal) |
| TOOL | Test Object Oriented Library |
| TOOL | Tiny Object-Oriented Language (computing) |
| TOOL | Conference on Technology of Object-Orientated Languages and Systems |
| TOOL | Tennessee Organization Of Locksmiths |
