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English thesaurus
Operation First Class
law, abbr.	OFC

Operation : 1779 phrases in 62 subjects

Accounting	2
Aerodynamics	1
Airports and air traffic control	5
American usage, not spelling	1
Archiving	1
Astronautics	35
Automobiles	3
Aviation	123
Brazil	1
Business style	24
Chemistry	2
Communications	5
Computers	48
Construction	13
Diplomacy	10
Ecology	2
Economics	78
Electronics	5
Energy industry	1
Environment	7
European Union	2
Finances	90
Forestry	3
General	73
Hotel industry	1
Human rights activism	4
ICAO	3
Immigration and citizenship	1
Informal	2
Information security and data protection	1
Information technology	224
Intelligence and security services	1
International relations	4
Law	144
Logistics	1
Materials science	1
Mathematics	2
Mechanic engineering	2
Medical	11
Metallurgy	1
Meteorology	1
Microelectronics	41
Microsoft	1
Military	649
Mining	3
NATO	2
Nautical	1
Oil / petroleum	1
Oil and gas	45
Psychology	1
Rail transport	3
Road construction	2
Robotics	11
Soil science	4
Space	4
Sports	1
Surgery	1
Technology	56
Telecommunications	3
Transport	4
Travel	6
United States	1