Definition of: coin

(koin) noun
1. A piece of metal stamped by government authority, for use as money.
2. Metal currency, collectively.
3. Kind or means of recompense.
4. A corner; quoin. See synonyms under MONEY.
—v.t.
1. To stamp or mint (coins) from metal.
2. To make into coins, as metal.
3. To originate or invent, as a word or phrase.
4. Colloq. To make or gain rapidly: to coin money.
—v.i.
5. Brit. Colloq. To counterfeit money. [<F, wedge, die <L cuneus wedge]
—coin′a·ble adjective
—coin′er noun