repeater

plural repeaters

1. One who or that which repeats.
2. educationA student repeating a course, class, or grade.
3. medicineA patient who repeatedly presents with the same symptoms.
4. businessA consumer who repeatedly purchases the same goods or services.
5. USOne 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, Upton Sinclair, The Machine

6. human sciencesA person who regularly sees unexplained sightings of paranormal phenomena.
7. datedengineeringA gun that has a store of cartridges and does not need reloading after each shot.

   Antonyms: single-shot

8. communicationsA telegraphic instrument for automatically retransmitting a message.
9. businessAn electronic device that receives a weak or low-level signal and retransmits it at a higher level or higher power.

   […] Colonel Moen was trying to make sense of the radio nets, which had never really been operational let alone secure; our numerous outposts were cobbled together with hand-held Motorolas and too few repeater stations […]

   2009, Julius Mutwol, Peace Agreements and Civil Wars in Africa, →ISBN, page 190

10. hobbiesA watch with a striking apparatus which, upon pressure of a spring, will indicate the time, usually in hours and quarters.
11. nauticalA frigate appointed to attend an admiral in a fleet, and to repeat the admiral's signals.
12. nauticalA pennant used to indicate that a certain flag in a hoist of signal is duplicated.First known use 19th century
13. mathematicsA repeating decimal.
14. businessIn calico printing, a design repeated at equal intervals in a pattern.