| English thesaurus | |||
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| RA | |||
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| An advisory issued by airborne collision avoidance system ACAS/traffic alert and collision avoidance system TCAS to alert pilots to potential conflicting air traffic and provide them with a suggested flight- path change in the vertical plane to reduce the possibility of collision | |||
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Resolution : 100 phrase in 16 subjects |
| Abbreviation | 2 |
| Automatic control | 1 |
| Computers | 15 |
| General | 40 |
| International Monetary Fund | 4 |
| Law | 1 |
| Lighting other than cinema | 1 |
| Microsoft | 16 |
| Name of organization | 3 |
| Nuclear physics | 1 |
| Physics | 8 |
| Radio | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Telegraphy | 2 |
| Video recording | 3 |