This is the 643rd most frequent Dutch word.
franse
"Franse" means "French" (adjective, relating to France or its people).
Here, 'Franse' is used as an adjective describing the nationality or origin of 'kaas' (cheese), indicating that the cheese is French.
Ik houd van Franse kaas.
I love French cheese.
In this case, 'Franse' is again an adjective describing 'taal' (language), specifying that the language in question is French.
De Franse taal is erg mooi.
The French language is very beautiful.
Here, 'Franse' functions as an adjective specifying the origin of 'auto' (car), indicating the car was made in France.