| English thesaurus | |||
| |||
| PADS (Slate Corporation) | |||
|
Pen : 152 phrases in 24 subjects |
| Agriculture | 46 |
| Commerce | 1 |
| Communications | 2 |
| Cultural studies | 1 |
| Earth sciences | 1 |
| Electronics | 3 |
| Fish farming pisciculture | 2 |
| Fishery fishing industry | 1 |
| General | 21 |
| Health care | 4 |
| Hobbies and pastimes | 1 |
| Immigration and citizenship | 2 |
| Industry | 15 |
| Information technology | 18 |
| Measuring instruments | 4 |
| Metallurgy | 2 |
| Microsoft | 8 |
| Municipal planning | 1 |
| Natural sciences | 1 |
| Patents | 11 |
| Pharmacy and pharmacology | 1 |
| Scientific | 1 |
| Sound recording | 2 |
| Transport | 3 |