This is the 867th most frequent Dutch word.
veertig
Forty.
Here, 'veertig' specifies an age in years.
Ik ben veertig jaar oud.
I am forty years old.
Here, 'veertig' indicates a duration of time in minutes.
Ze werkt dagelijks veertig minuten aan haar project.
She spends forty minutes daily working on her project.
Here, 'veertig' quantifies the number of books.