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Meaning of coin changer

coin' chang"er

Pronunciation: [key]
  1. a machine that gives change rapidly, as to a customer, typically operated by a manual keyboard and often used in association with a cash register.
  2. a machine that supplies change, as small coins for large or large coins for small, esp. for the use of other coin-operated machines.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.