| English thesaurus | |||
| |||
| Lights placed across the ends of a runway or landing strip to indicate its usable limits | |||
|
threshold : 32 phrases in 8 subjects |
| Ecology | 1 |
| Economics | 2 |
| Isolation | 16 |
| Magnetics | 4 |
| Microsoft | 1 |
| Power electronics | 1 |
| Risk Management | 1 |
| Vacuum tubes | 6 |