knocking : 198 phrases in 22 subjects |
Advertising | 2 |
Airports and air traffic control | 1 |
American usage, not spelling | 2 |
Australian | 1 |
Aviation | 5 |
Chemistry | 1 |
Construction | 1 |
Diplomacy | 1 |
Economics | 12 |
Finances | 3 |
General | 113 |
Informal | 31 |
Law | 3 |
Mechanic engineering | 1 |
Military | 4 |
Nautical | 2 |
Oil / petroleum | 1 |
Oil and gas | 7 |
Physics | 2 |
Sports | 2 |
Technology | 2 |
Theatre | 1 |