 |
| system: 83 phrases in 17 subjects |
| Abbreviation | 39 |
| Accounting | 1 |
| Aeronautics | 1 |
| Astronautics | 1 |
| Business | 3 |
| Computer networks | 2 |
| Computers | 2 |
| Ecology | 1 |
| Information technology | 8 |
| Investment | 1 |
| Military | 7 |
| New York Stock Exchange | 1 |
| Programming | 1 |
| Stock Exchange | 8 |
| Telecommunications | 2 |
| Transport | 2 |
| United States | 3 |