| ringer | (horseshoes) the successful throw of a horseshoe or quoit so as to encircle a stake or peg |
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| ringer | a contestant entered in a competition under false pretenses |
| ringer | (informal) a person who is almost identical to another |
| ringer | a person who rings church bells (as for summoning the congregation) |
| ringer | an aqueous solution containing the chlorides of sodium and potassium and calcium that is isotonic to animal tissues |
| ringer | an aqueous solution containing the chlorides of sodium and potassium and calcium that is isotonic to animal tissues |