De or het objectafbakening?

The correct Dutch article is:

de objectafbakening

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

How to use objectafbakening

the objectafbakeningde objectafbakening
this objectafbakeningdeze objectafbakening
that objectafbakeningdie objectafbakening
our objectafbakeningonze objectafbakening
your objectafbakeningjouw objectafbakening
every objectafbakeningelke objectafbakening
which objectafbakening?welke objectafbakening?
a big objectafbakening / the big objectafbakeningeen grote objectafbakening, de grote objectafbakening