1. Coming next after the fourth and just before the sixth in position
   - 5th

1. Position five in a countable series of things
   "he was fifth out of several hundred runners"
    
2. One part in five equal parts
   "She donated one-fifth of her income to charity"; "The recipe called for a fifth part of the mixture";
   - one-fifth, fifth part, twenty percent
    
3. The musical interval between one note and another five notes away from it
   "The bass line moved in fifths, creating a powerful sound"
    
4. A quantity of liquor equal to one fifth of a United States gallon
   "They bought a fifth of whiskey for the party"

Derived forms: fifths

See also: ordinal

Type of: common fraction, interval, musical interval, rank, simple fraction, United States liquid unit, vulgar fraction [Brit]

Encyclopedia: Fifth