Repeater

n.

1.

(Teleg.) One who, or that which, repeats.

Noun	1.	repeater - a person who repeats; "the audience consisted largely of repeaters who had seen the movie many times"
	2.	repeater - someone who is repeatedly arrested for criminal behavior (especially for the same criminal behavior) Synonyms: habitual criminal, recidivist
	3.	repeater - a firearm that can fire several rounds without reloading Synonyms: repeating firearm
	4.	repeater - (electronics) electronic device that amplifies a signal before transmitting it again; "repeaters can be used in computer networks to extend cabling distances"

(networking, communications)

repeater - A network or communications device which propagates electrical signals from one cable to another, amplifying them to restore them to full strength in the process. Repeaters are used to counter the attenuation which occurs when signals travel long distances (e.g. across an ocean). A network repeater is less intelligent than a bridge, gateway or router since it works at the physical layer.

automatic, backslider, ballot-box stuffer, balloter, blowgun, blowpipe, elector, firearm, flamethrower, floater, fraudulent voter, gat, gun, handgun, heater, lost lamb, musket, peashooter, piece, pistol, prodigal son, proxy, recidivist, registered voter, returnee, reversioner, reversionist, revolver, rifle, rod, sawed-off shotgun, shooting iron, shotgun, six-gun, six-shooter, two-time loser, voter