![]() |
English thesaurus | |||
| |||
The collection of information of intelligence interest either by visual observation from the air or through the use of airborne sensors. (FRA) |
air: 128 phrases in 6 subjects |
Australian | 3 |
Aviation | 2 |
Bookish / literary | 1 |
General | 116 |
Informal | 2 |
Uncommon / rare | 4 |