This is the 209th most frequent Afrikaans word.
aangesien
"Seeing that" or "since."
In this context, 'aangesien' introduces a cause for the decision to leave early.
Ons het besluit om vroeg te vertrek aangesien die weer sleg kan word.
We decided to leave early since the weather might turn bad.
Here, 'aangesien' is used as a conjunction to explain the reason for staying indoors.
Aangesien dit reën, moet ons binnenshuis bly.
Since it is raining, we have to stay indoors.
Here, 'aangesien' is used to provide the reason why they decided to watch the movie again.