This is the 4107th most frequent Catalan word.
dinou
Nineteen.
Here, "dinou" is used as a numeral representing the age of a person.
Tinc dinou anys.
I am nineteen years old.
In this case, "dinou" specifies a day of the month, indicating a date.
El dinou de maig és el meu aniversari.
The nineteenth of May is my birthday.
Here, "dinou" is used as a proper noun identifying a specific number.