Definition of change-maker in English:

change-maker

noun

  • 1US a person who exchanges a sum of money for the same sum in a different denomination, especially as a profession; (also) any of various machines that perform such an exchange, typically banknotes for coins (now rare).

  • 2A person who works actively to effect positive social change.

Origin

Mid 19th century; earliest use found in Knickerbocker.