The decade of one's life from age 50 through age 59.
Fifties Sentence Examples
They were only here four or five years in the late fifties, Charlie said.
The feed store lasted into the fifties.
There were wide eighteenth- century ball gowns, women in little black dresses, one in a fifties poodle skirt, and several in dark dresses with ornate brocade on the bodice, like that of wealthy Middle Age royalty.
If you keep on waiting, you're going to be having children in your fifties, like your parents.