| THR | a region and ancient country in the east of the Balkan Peninsula north of the Aegean Sea |
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| THR | a Thraco-Phrygian language spoken by the ancient people of Thrace but extinct by the early Middle Ages |
| THR | an extinct branch of the Indo-European language family thought by some to be related to Armenian |
| THR | the state of being under the control of another person |
| THR | someone held in bondage |
| THR | the state of being under the control of another person |
| THR | the state of being under the control of another person |
| THR | a swimming kick used while treading water |
| THR | beat thoroughly in a competition or fight |
| THR | give a thrashing to |
| THR | beat the seeds out of a grain |
| THR | move data into and out of core rather than performing useful computation |