Accounting	359
Accumulators	17
Acoustics	10
Acridology	11
Agriculture	5140
Alcohol distilling	1
Alternative dispute resolution	2
American usage, not spelling	65
Amphibians and reptiles	201
Analytical chemistry	457
Animal husbandry	254
Antennas and waveguides	247
Architecture	11
Art	110
Astronautics	67
Astronomy	568
Athletics	42
Audit	4
Automated equipment	2248
Automatic control	46
Automobiles	3
Aviation	2624
Avuncular	1
Bacteriology	2
Banking	341
Basketball	9
Beekeeping	4
Beverages	4
Bible	1
Biochemistry	5
Bioenergy	62
Biology	118
Biotechnology	149
Book binding	26
Botany	368
Boxing	16
Brewery	1
British usage, not spelling	62
Building materials	7
Building structures	31
Business	200
Cables and cable production	33
Cartography	5
Cement	1
Ceramics	4
Chemical fibers	24
Chemistry	4251
Chess	18
Cinematography	26
Climatology	30
Coal	556
Commerce	659
Communications	6044
Computer networks	8
Computer numerical control	101
Computers	3184
Construction	5244
Cooking	3
Corporate governance	364
Criminal law	233
Cultural studies	344
Customs	72
Cycle sport	16
Cycling other than sport	6
Data processing	66
Demography	121
Dosimetry	48
Dyalysis	41
Dyes	5
Earth sciences	2760
Ecology	27
Economics	3455
Education	1362
Electric machinery	15
Electric motors	38
Electric traction	65
Electrical engineering	31
Electricity	1
Electricity generation	76
Electrochemistry	16
Electronics	5043
Embryology	1
Employment	34
Energy distribution	2
Energy industry	710
Engineering	16
English	3
Entomology	89
Environment	3259
Equestrian sports	20
Euphemistic	3
European Union	125
Explosives and Explosive Ordnance Disposal	5
Fencing	39
Figurative	64
Finances	6659
Fish farming pisciculture	467
Fishery fishing industry	139
Food industry	654
Food service and catering	115
Football	16
Forestry	802
Foundation engineering	1
Gardening	8
Gear train	138
General	15297
Genetics	93
Geography	170
Geology	18
Geophysics	3
Glass production	3
Government, administration and public services	156
Grammar	12
Grass hockey	3
Gymnastics	88
Handball	19
Health care	2235
Heating	1
High energy physics	716
Historical	4
Hobbies and pastimes	444
Horticulture	66
Human resources	93
Human rights activism	245
Humorous / Jocular	12
Hydraulic engineering	8
Hydrology	65
Hygiene	7
Ice hockey	6
Ichthyology	369
Immigration and citizenship	490
Industry	2295
Informal	50
Information technology	5542
Insurance	851
International law	47
International Monetary Fund	1314
International trade	272
Investment	34
Ironical	2
Isolation	27
Journalism terminology	1
Judo	13
Kayaking	6
Knitted goods	16
Labor law	950
Labor organization	28
Laboratory equipment	70
Latin American	8
Law	6970
Leather	22
Librarianship	72
Life sciences	2178
Lighting other than cinema	35
Linguistics	98
Literature	4
Loading equipment	103
Machinery and mechanisms	10
Magnetics	39
Mammals	393
Marketing	871
Materials science	850
Mathematics	432
Measuring instruments	500
Mechanic engineering	3014
Mechanics	25
Medical	5332
Medical appliances	1582
Melioration	2
Metallurgy	2872
Meteorology	2
Metrology	16
Microbiology	23
Microscopy	5
Microsoft	2142
Military	308
Milk production	9
Mineral products	131
Mineralogy	5
Mining	25
Municipal planning	439
Music	1
Mythology	1
Name of organization	2211
Natural resourses and wildlife conservation	2332
Natural sciences	1516
Nautical	32
Navy	1
Neurolinguistics	3
Nuclear and fusion power	35
Nuclear physics	1141
Obsolete / dated	121
Oceanography & oceanology	2
Oil / petroleum	50
Optics branch of physics	1
Ornithology	487
Packaging	543
Paint, varnish and lacquer	7
Paleontology	24
Paragliding	64
Patents	1738
Pejorative	3
Pest control	100
Pets	3
Pharmacology	11
Pharmacy and pharmacology	221
Philately / stamp collecting	1
Phonology	63
Photography	8
Physical sciences	153
Physics	41
Piezoelectric crystals	33
Planning	11
Plastics	12
Platform diving	10
Plumbing	6
Politics	1122
Polygraphy	5
Power electronics	15
Power lines	56
Power system protection	47
Pragmatics	11
Printed circuit boards	1
Private international law	18
Procedural law	74
Proper and figurative	5
Proverb	8
Psychiatry	3
Public relations	4
Pulp and paper industry	25
Radiation	1179
Radio	92
Radiobiology	17
Radiography	31
Radiology	5
Rail transport	91
Reinforced concrete	1
Reliability	58
Religion	59
Remote sensing	87
Research and development	157
Resins	2
Rhetoric	2
Risk Management	6
Road works	5
Rowing	7
Sailing	33
Satellite communications	3
School	2
Scientific	119
Scuba diving	4
Security systems	108
Semiconductors	4
Semiotics	1
Shooting sport	21
Skiing	16
Social science	1152
Socialism	22
Sociolinguistics	9
Sociology	89
Soil science	53
Sound recording	30
Speed skating	12
Sports	180
Statistics	1380
Sugar production	17
Superconductivity	26
Surgery	1
Surveying	11
Swimming	30
Syntax	4
Table tennis	4
Tagmemics	4
Taxes	477
Technology	5011
Telecommunications	826
Telegraphy	46
Telephony	37
Television	2
Tennis	12
Textile industry	689
Thermal Energy	73
Thermal engineering	1
Tools	3
Toxicology	3
Trade unions	57
Transformers	15
Transport	9714
Travel	17
Ultrasound	6
United Nations	2109
United States	1
University	2
Vacuum tubes	4
Ventilation	12
Veterinary medicine	63
Video recording	15
Virology	19
Volleyball	17
Waste management	23
Water resources	402
Water supply	19
Weightlifting	8
Welding	17
Welfare & Social Security	115
Wind Energy	4
Wiring	1
Wood processing	72
Work flow	391
Wrestling	17
Zoology	180


D* abbr.
commun. IT	D-star
DS abbr.
astr.	diffuse luminous surface
d abbr.
gen.	height of reserve layer
fin.	1 penny; 4 farthings