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English thesaurus
Doubles Detector
abbr., post	DD (on AFCS-DD, 2004)

Doubles: 370 phrases in 49 subjects

Accounting	2
Agriculture	26
American usage, not spelling	1
Analytical chemistry	21
Antennas and waveguides	2
Automatic control	3
Botany	1
Building materials	2
Building structures	1
Cables and cable production	2
Chemistry	18
Construction	146
Criminal law	1
Dyes	1
Electric machinery	1
Electric motors	5
Electric traction	10
Electrical engineering	2
Electricity generation	2
Electrochemistry	4
Electronics	1
Forestry	3
General	40
Horticulture	2
Insurance	1
Law	2
Magnetics	1
Mathematics	1
Medical	5
Microsoft	9
Music	1
Oil / petroleum	1
Ornithology	1
Polymers	4
Power electronics	3
Power lines	9
Power system protection	1
Printed circuit boards	4
Radio	3
Radiology	2
Rail transport	2
Road works	2
Sports	1
Technology	2
Telecommunications	2
Telegraphy	4
Transport	5
Vacuum tubes	3
Zootechnics	4