| English thesaurus | |||
| |||
| PTO | |||
|
Personal Time : 16 phrases in 11 subjects |
| Apollo-Soyuz | 1 |
| Automated equipment | 1 |
| Construction | 1 |
| Economics | 2 |
| General | 2 |
| Labor organization | 1 |
| Mechanics | 1 |
| Occupational health & safety | 2 |
| Project management | 3 |
| Psychology | 1 |
| Sports | 1 |