[ring.er] n (15c) 1: one that sounds esp. by ringing
2. a (1): one that enters a competition under false representations (2): imposter, fake b: one that strongly resembles another--often used with dead "he's a dead ~ for the senator"
[2]ringer n (1863): one that encircles or puts a ring around (as a quoit or horseshoe that lodges so as to surround the peg)