| English thesaurus | |||
| |||
| The lowest flight level available for use above the transition altitude | |||
|
transition : 6 phrases in 5 subjects |
| Economics | 2 |
| Environment | 1 |
| General | 1 |
| Microsoft | 1 |
| Transport | 1 |
| English thesaurus | |||
| |||
| The lowest flight level available for use above the transition altitude | |||
|
transition : 6 phrases in 5 subjects |
| Economics | 2 |
| Environment | 1 |
| General | 1 |
| Microsoft | 1 |
| Transport | 1 |