noun
numismatist
noo-MIZ-muh-tist/nuːˈmɪzmətɪst/
A person who collects or studies coins, paper money, or medals.
The numismatist examines an old coin under a magnifying glass.

Etymology
The coin root originally meant something sanctioned by custom or usage—hence money accepted as current. With the specialist ending, it names someone who studies or collects coins and related objects such as medals.
In context
Two coins carrying the same date can tell very different stories. And for the serious numismatist, discovering exactly which story a particular buffalo nickel tells is where the real fascination begins.
More examples
- Some numismatists collect paper money from around the world.
- A numismatist helps the museum identify its commemorative medals.
- She consults a numismatist before selling her grandfather's coins.
Forms
numismatist · numismatists
numismatics noun — The study of coins, money, and medals.
numismatic adjective — Relating to coins, currency, or medals.