fifth

nouns

a quantity of liquor equal to one fifth of a United States gallon
is a type of (narrower)
a liquid unit officially adopted in the United States Customary System
position five in a countable series of things
"he was fifth out of several hundred runners"
is a type of (narrower)
relative status
"his salary was determined by his rank and seniority"
one part in five equal parts
the musical interval between one note and another five notes away from it
is a type of (narrower)
the difference in pitch between two notes

adjectives

coming next after the fourth and just before the sixth in position