repeater

noun14

1. •
   One who or that which repeats.
2. •
   A student repeating a course, class, or grade.
3. •
   A patient who repeatedly presents with the same symptoms.
4. •
   A consumer who repeatedly purchases the same goods or services.
5. •
   (US) One who votes more than once at an election.

   • The pimps and the panders, the cadets and maquereaux… they vote the ticket of the organization; they contribute to the campaign funds; they serve as colonizers and repeaters at the polls. — 1912
6. •
   A person who regularly sees unexplained sightings of paranormal phenomena.
7. •
   A repeating decimal.
8. •
   In calico printing, a design repeated at equal intervals in a pattern.
9. •
   A telegraphic instrument for automatically retransmitting a message.
10. •
    An electronic device that receives a weak or low-level signal and retransmits it at a higher level or higher power.
11. •
    A frigate appointed to attend an admiral in a fleet, and to repeat the admiral's signals.
12. •
    (old-fashioned) A gun that has a store of cartridges and does not need reloading after each shot.
13. •
    A watch with a striking apparatus which, upon pressure of a spring, will indicate the time, usually in hours and quarters.
14. •
    A pennant used to indicate that a certain flag in a hoist of signal is duplicated.