| English thesaurus | |||
| |||
| The lowest flight level available for use above the transition altitude. | |||
| The lowest flight level available for use above the transition altitude | |||
|
transition : 30 phrases in 12 subjects |
| Economics | 2 |
| Environment | 1 |
| Finances | 4 |
| General | 3 |
| Human rights activism | 1 |
| Labor law | 3 |
| Law | 3 |
| Microsoft | 9 |
| Politics | 1 |
| Social science | 1 |
| Trade unions | 1 |
| United Nations | 1 |