De or het gifstorting?

The correct Dutch article is:

de gifstorting

Rule Words ending in -ing: almost always de. See the rule

How to use gifstorting

the gifstortingde gifstorting
this gifstortingdeze gifstorting
that gifstortingdie gifstorting
our gifstortingonze gifstorting
your gifstortingjouw gifstorting
every gifstortingelke gifstorting
which gifstorting?welke gifstorting?
a big gifstorting / the big gifstortingeen grote gifstorting, de grote gifstorting