fifth
adjectiveUK /fɪfθ/
US /fɪfθ/
Coming after the fourth one in a line.
She lives on the fifth floor of the building.
OTHER MEANINGS
2. One of five equal parts of something.
He drank a fifth of the bottle.
3. The position or rank number five in a series.
She finished fifth in the race.
4. A unit of volume equal to one-fifth of a gallon.
They bought a fifth of whiskey.
5. In music, the interval between a note and the fifth note above it.
The chord uses a perfect fifth.