Learner's definition of DENOMINATION
1 : a religious group
People from several different religious denominations participated in the event.
Methodists, Baptists, and other Christian denominations
It's one of the more conservative denominations.
2 a : the value that a particular coin or bill has
b : an amount of money that something is worth
coins of different denominations [=pennies, nickels, dimes, etc.]
The kidnappers asked for bills in small denominations.
3 formal : a general name for a group or kind