OF | |
abbr. chem. scient. | Oxygen Free |
abbr. el. scient. | Optical Fiber |
abbr. IT | Output File; Overflow Flag |
abbr. mil. | Objective Force; Opposing Force; Optional Form |
abbr. progr. IT | Open File |
abbr. sport. | Outfield; Outfielder |
Municipal: 3 phrases in 3 subjects |
Airports and air traffic control | 1 |
Law | 1 |
Oceanography & oceanology | 1 |