| English thesaurus | |||
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| PC | |||
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Polar : 34 phrases in 13 subjects |
| Antennas and waveguides | 2 |
| Chemistry | 10 |
| Construction | 5 |
| Environment | 2 |
| Fish farming pisciculture | 1 |
| General | 1 |
| Life sciences | 1 |
| Mathematics | 4 |
| Mineralogy | 1 |
| Physics | 1 |
| Radio | 4 |
| Satellite communications | 1 |
| Surveying | 1 |