Orr | Operation
| Operation | |
| gen. | operation; surgery |
| comp., MS | operation |
| health. | surgical operation |
| IT | computer operation |
| med. | surgical procedure; procedure; encheiresis |
| phys. | instruction |
| tech. | function |
| German thesaurus | |||
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| Oberregierungsrat (4uzhoj) | |||
| Oak Ridge Research Reactor | |||
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Orr : 12 phrases in 3 subjects |
| Chemistry | 6 |
| Medical | 4 |
| Physics | 2 |