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| English thesaurus | |||
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| IC | |||
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Instruction : 446 phrases in 27 subjects |
| American usage, not spelling | 2 |
| Astronautics | 1 |
| Audit | 2 |
| Aviation | 41 |
| Business | 1 |
| Computers | 95 |
| Construction | 2 |
| Diplomacy | 3 |
| Economics | 9 |
| Education | 1 |
| Environment | 3 |
| Finances | 3 |
| General | 20 |
| Human rights activism | 2 |
| ICAO | 1 |
| Information security and data protection | 2 |
| Information technology | 159 |
| Law | 21 |
| Microelectronics | 1 |
| Microsoft | 1 |
| Military | 63 |
| Oil and gas | 1 |
| Programming | 1 |
| Scientific | 1 |
| Technology | 8 |
| Telecommunications | 1 |
| Textile industry | 1 |