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English thesaurus
Ground Network
NASA, abbr.	GN

Ground: 311 phrases in 34 subjects

Agriculture	91
Agronomy	9
Architecture	1
Botany	3
Building materials	1
Building structures	1
Chemistry	6
Communications	5
Construction	85
Earth sciences	3
Economy	5
Entomology	2
Environment	11
Fish farming pisciculture	1
Forestry	25
Foundation engineering	1
General	3
Geography	3
Horticulture	2
Human rights activism	1
Hydrology	3
Ichthyology	1
Immigration and citizenship	4
Law	5
Life sciences	1
Melioration	2
Meteorology	2
Natural sciences	2
Obsolete / dated	2
Procedural law	3
Soil science	12
Surveying	1
Transport	13
Zoology	1