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English thesaurus
improvement [ɪm'pru:vmənt] abbr.
abbr.	imp
abbr., agric.	ipv
invest., abbr.	impr.

improvements of : 45 phrases in 16 subjects

Agriculture	4
Communications	1
Construction	1
Economics	6
Environment	5
Finances	4
General	8
Health care	4
Information technology	2
Labor law	2
Law	1
Metallurgy	2
Natural sciences	1
Politics	2
Social science	1
Trade unions	1