| English thesaurus | |||
| |||
| RTC | |||
|
Recorder : 947 phrases in 62 subjects |
| Agriculture | 6 |
| Alternative dispute resolution | 1 |
| American usage, not spelling | 2 |
| Antennas and waveguides | 2 |
| Astronomy | 2 |
| Automated equipment | 34 |
| Automobiles | 3 |
| Aviation | 3 |
| Biology | 1 |
| British usage, not spelling | 3 |
| Chemistry | 14 |
| Coal | 1 |
| Communications | 45 |
| Computers | 12 |
| Construction | 2 |
| Cultural studies | 1 |
| Earth sciences | 17 |
| Economics | 2 |
| Education | 1 |
| Electronics | 51 |
| Emergency medical care | 1 |
| Environment | 1 |
| Fish farming pisciculture | 1 |
| Foreign trade | 1 |
| Forestry | 1 |
| General | 68 |
| Geology | 2 |
| Health care | 6 |
| Hobbies and pastimes | 2 |
| Industry | 16 |
| Information technology | 38 |
| Law | 2 |
| Life sciences | 33 |
| Materials science | 6 |
| Measuring instruments | 128 |
| Mechanic engineering | 3 |
| Mechanics | 2 |
| Medical | 8 |
| Medical appliances | 26 |
| Metallurgy | 5 |
| Meteorology | 4 |
| Microelectronics | 2 |
| Microsoft | 7 |
| Mining | 8 |
| Music | 1 |
| Natural resourses and wildlife conservation | 17 |
| Navigation | 1 |
| Nuclear physics | 3 |
| Optics branch of physics | 39 |
| Packaging | 2 |
| Patents | 8 |
| Physics | 28 |
| Psychology | 1 |
| Radiation | 4 |
| Radio | 4 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Sound recording | 16 |
| Technology | 194 |
| Telecommunications | 2 |
| Transport | 46 |
| Video recording | 5 |