num
fifteen
FIHF-teen
num
1
The number after fourteen and before sixteen; 15.
"She turns fifteen next week."
How to Use Fifteen
Learner’s notesIn plain EnglishThe number 15.
Common pairings
fifteen minutes
fifteen years old
Word Forms
fifteens plural
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She turns _____ next week.
Etymology
From Old English fiftiene, built from "five" plus "-teen" (meaning "ten").