- being ten more than forty
- the cardinal number that is the product of ten and five
- fifty dollar bill: a United States bill worth 50 dollars
- (fifties) the decade from 1950 to 1959
- (fifties) the time of life between 50 and 60
- 50 (fifty) is the natural number following 49 and preceding 51.
- (The Fifties(book)) The Fifties (ISBN 9780679415596, 1993) is a historical account by David Halberstam about the decade of the 1950s in the United States. ...
- (Fifties) the decade that precedes the sixties. It is difficult to say what exactly happened in the Fifties, since the recordings and photographs from that time all have the artifacts and distortions that contemporary technology and intervening years have imposed. ...
- (The Fifties) (1997), television mini-series
- A fifty-second penalty assessed when a whitewater paddler misses a gate, moves a gate pole to allow passage, or goes through a gate in the wrong direction.
- and Cinquante - Labatt 50, a Canadian brand of beer. Cinquante is fifty in French. This term is limited to frequent beer drinkers. Canadians who don't drink beer frequently would not know this "term" at all.
- informal designation for the 1919 Browning M-2 .5O-caliber machinegun with heavy-barrel (@84#), also known as "Ma Deuce", being a belt-fed, recoil-operated, and air-cooled automatic weapon, 65" long, tripod or pedestal mounted, firing with a "butterfly" TRIGGER from the open-bolt position at a ...
- Score which can denote different things to different nationalities. To Australians, Indians, Sri Lankans, it is the sign that an innings is just getting going. To the English batsman, this means a job well done and back into the hutch for a rub-down and few rounds of Twitter. ...
- the .50 caliber M2-HB machine gun.
- num. wikc^e'mna za'pta~.