Change as legal term denotes alteration or substitution, including monetary exchange and small coin usage. Change denotes a legal term describing both a substantive alteration and an act of exchange. As a noun, change covers alteration, modification, addition, substitution, and the exchange of money for a different denomination; it also denotes small coin and may serve as an abbreviation for exchange. As a verb, it denotes to alter, transfer from one place to another, exchange, make different, substitute one thing for another, or vacate.