De or het onttakeling?

The correct Dutch article is:

de onttakeling

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

How to use onttakeling

the onttakelingde onttakeling
this onttakelingdeze onttakeling
that onttakelingdie onttakeling
our onttakelingonze onttakeling
your onttakelingjouw onttakeling
every onttakelingelke onttakeling
which onttakeling?welke onttakeling?
a big onttakeling / the big onttakelingeen grote onttakeling, de grote onttakeling