Meaning of “fifteen” - Learner’s Dictionary

fifteen

us uk /ˌfɪfˈtiːn/
Extra Examples
She's only fifteen.We have fifteen guests invited.We've been together for fifteen years now.There are fifteen classes in all.We met fifteen years ago.

A1 the number 15

fifteenth

15th written as a word

(Definition of “fifteen” from the Cambridge Learner’s Dictionary © Cambridge University Press)