coin · noun C /kɔɪn/
coin
B1 a small, flat, usually round piece of metal used as money
Dictionary examples:
a 10p/ten pence coin
a Canadian ten-cent coin
gold coins
The one dollar coin has never become popular.
He collects old coins.
I asked for ten dollars in coins.
The machine takes dollar coins.
Learner example:
It was an old coin that my granny gave me three years ago. (Preliminary English Test; B1; Italian)
coin · verb /kɔɪn/
coin
C2 to be the first person who uses a new word or phrase
Dictionary example:
The Czech playwright, Capek, coined the word "robot."
Learner example:
S. Czernick coined a term for such type of poetry - authenticism. (Certificate of Proficiency in English; C2; Polish)