fifteenth

/fɪfˈtiːnθ/
adjective
  1. Coming after the fourteenth in order or position.
    • Her fifteenth birthday party was a big celebration.
    • He finished in fifteenth place in the race.
    • The store is having a sale on the fifteenth day of the month.
noun
  1. One of fifteen equal parts of something.
    • Each person received a fifteenth of the total prize money.
    • The recipe calls for a fifteenth of a cup of sugar.
    • She ate a fifteenth of the cake.
  2. The position or item in a sequence that comes after the fourteenth.
    • He was the fifteenth to arrive at the meeting.
    • The fifteenth on the list is the one we need.
    • She marked the fifteenth in her calendar.