Noun
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the musical interval between one note and another five notes away from it
-
one part in five equal parts
- one fifth - fifth part - twenty percent -
position five in a countable series of things
"he was fifth out of several hundred runners"
-
a quantity of liquor equal to one fifth of a United States gallon
Adjective
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coming next after the fourth and just before the sixth in position
- 5th