| English thesaurus | |||
| |||
| TN | |||
|
Tunneling : 65 phrases in 16 subjects |
| American usage, not spelling | 6 |
| British usage, not spelling | 1 |
| Chemistry | 2 |
| Communications | 1 |
| Construction | 16 |
| Earth sciences | 2 |
| Electronics | 3 |
| Machinery and mechanisms | 2 |
| Medical | 3 |
| Medical appliances | 3 |
| Metallurgy | 1 |
| Microelectronics | 2 |
| Microsoft | 2 |
| Physical sciences | 2 |
| Physics | 18 |
| Research and development | 1 |