repeater

(rĭ-pēˈtər)

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 student who repeats a course, usually one that has been failed.
5. One who fraudulently votes more than once in a single election.
6. One who has been convicted of wrongdoing more than once, especially for the same offense.