| |||
ac | |||
a/c (system) |
air: 90 phrases in 11 subjects |
Abbreviation | 51 |
Ecology | 4 |
Energy industry | 1 |
International transportation | 1 |
Meteorology | 1 |
Military | 21 |
Non-governmental organizations | 2 |
Oceanography & oceanology | 2 |
Trademark | 1 |
Transport | 5 |
United States | 1 |