sixtieth

/ˈsɪkstiəθ/
adjective
  1. Coming after the fifty-ninth in a series; ordinal form of sixty.
    • The company is celebrating its sixtieth anniversary this year.
    • She celebrated her sixtieth birthday with a big party.
    • This is the sixtieth time I've told you to clean your room.
noun
  1. One of sixty equal parts of something.
    • He ate only a sixtieth of the cake because it was so rich.
    • The recipe calls for a sixtieth of a teaspoon of salt.
    • Each share represents a sixtieth of the total ownership.
  2. The sixtieth item in a sequence or list.
    • The sixtieth chapter of the book is the most exciting.
    • She was the sixtieth person to sign up for the class.
    • His name appears sixtieth on the waiting list.
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