thirteen
US /θɝːˈtiːn/
UK /θɝːˈtiːn/

1.
dertien
the number equivalent to the sum of ten and three; one more than twelve, or seven less than twenty.
:
•
There are thirteen students in the class.
Er zijn dertien studenten in de klas.
•
She turned thirteen last month.
Ze is vorige maand dertien geworden.