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English thesaurus
Observation Squadron
abbr., scottish	OS

Observation : 716 phrases in 66 subjects

Agriculture	9
Alternative dispute resolution	1
Archaeology	2
Artificial intelligence	3
Astronautics	5
Astronomy	11
Automated equipment	1
Biology	3
Building structures	1
Business	36
Chemistry	3
Communications	19
Computer numerical control	1
Construction	8
Cultural studies	1
Data processing	2
Earth sciences	8
Economics	27
Education	15
Electronics	3
Energy industry	2
Environment	16
European Union	1
Finances	4
Fish farming pisciculture	1
General	64
Geology	1
Germany	1
Health care	1
Historical	1
Human rights activism	13
Immigration and citizenship	1
Industry	2
Information technology	13
Labor law	5
Law	10
Life sciences	68
Marketing	1
Mathematics	5
Measuring instruments	3
Mechanic engineering	2
Medical	17
Medical appliances	3
Metallurgy	1
Meteorology	2
Microelectronics	1
Mine surveying	2
Mining	8
Natural resourses and wildlife conservation	23
Natural sciences	5
Nuclear physics	2
Optics branch of physics	43
Patents	2
Pharmacology	1
Physics	17
Politics	6
Psychology	3
Radiation	1
Social science	1
Statistics	35
Surveying	6
Technology	140
Telecommunications	2
Telephony	1
Transport	19
Weapons and gunsmithing	1