counterfeit money; counterfeit bill; counterfeit note
Refers specifically to fake paper currency, not coins or digital money.
ATMから偽札が出てきた。
A counterfeit bill came out of the ATM.
警察は偽札の製造グループを摘発した。
The police busted a counterfeit money production ring.
He was caught trying to use counterfeit money at a convenience store.
The man was making counterfeit bills at his home.
Counterfeit bills were found in the cash register.