This is the 178th most frequent Afrikaans word.
een
"Een" in Afrikaans means "one" in English.
The word "een" is used here as a numeral, indicating a single quantity of the noun "appel".
Sy het een appel geëet.
She ate one apple.
Here, "een" functions numerically again, emphasizing the singular entity of the noun "huis".
Hulle woon in een huis.
They live in one house.
In this context, "een" is used as an abstract concept indicating unity or togetherness among the subjects.