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English thesaurus
mass observation ['mæs'ɔbzə'veɪʃ(ə)n]
abbr.	mo

mass: 592 phrases in 43 subjects

Agriculture	23
Astronautics	1
Chemistry	81
Coal	1
Communications	12
Construction	4
Earth sciences	57
Economy	16
Education	3
Electronics	19
Energy industry	3
Environment	18
Finances	2
Food industry	5
General	20
Health care	13
Hobbies and pastimes	7
Immigration and citizenship	3
Industry	19
Information technology	14
Insurance	1
Labor law	1
Law	2
Life sciences	32
Materials science	4
Mathematics	2
Mechanic engineering	6
Medical	24
Metallurgy	9
Microsoft	2
Music	2
Natural sciences	24
Nuclear and fusion power	1
Nuclear physics	11
Obsolete / dated	4
Physical sciences	13
Politics	1
Research and development	2
Scientific	4
Social science	1
Statistics	3
Technology	37
Transport	85