| English thesaurus | |||
| |||
| OCS | |||
|
Operator Communications : 31 phrases in 11 subjects |
| Automated equipment | 1 |
| Computer networks | 2 |
| General | 1 |
| Information technology | 1 |
| Military | 6 |
| Mobile and cellular communications | 1 |
| Oil and gas | 2 |
| Programming | 1 |
| Security systems | 1 |
| Technology | 10 |
| Telecommunications | 5 |