1. One that repeats: "[The] tourists are mainly repeaters from the United States and Canada who come for the peace and quiet" (James Kerr).

2. A watch or clock with a pressure-activated mechanism that strikes the hour.

3. A repeating firearm.

4. A device used to amplify digital or analog signals in order to strengthen them for retransmission, as on a computer network or in telephone or radio transmission.

5. A student who repeats a course, usually one that has been failed.

6. One who fraudulently votes more than once in a single election.

7. One who has been convicted of wrongdoing more than once, especially for the same offense.