noun
Refers to a physical piece of metal money. Used in everyday contexts such as vending machines, parking meters, and coin-operated devices.
自動販売機にコインを入れてください。
Please insert a coin into the vending machine.
Used for non-currency coin-like objects such as game tokens, laundry tokens, or casino chips. Less common than the primary 'coin' sense.
ゲームセンターで使うコインを買った。
I bought tokens to use at the arcade.