WordWeb Online

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

1. A quantity of liquor equal to one fifth of a United States gallon
    
2. Position five in a countable series of things
   "he was fifth out of several hundred runners"
    
3. One part in five equal parts
   - one-fifth, fifth part, twenty percent
    
4. The musical interval between one note and another five notes away from it

Derived forms: fifths

See also: fifthly, ordinal

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

Encyclopedia: Fifth