English numbers (edit)
50
 ←  4 5 6  → 
    Cardinal: five
    Ordinal: fifth
    Multiplier: quintuple
    Distributive: quintuply
    Fractional: fifth

Word parts

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five + -th

Pronunciation

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Adjective

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Positive
fifth

Comparative
none

Superlative
none

  1. (ordinal number) The fifth thing is something that is number five (5) in order.
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Singular
fifth

Plural
fifths

  1. A fifth of something is one of five equal parts of that thing.
    Three is one fifth of fifteen.
  2. A fifth of an alcoholic drink is a bottle of it.
    They drank a fifth of vodka last night.