De or het loonaanpassing?

The correct Dutch article is:

de loonaanpassing

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

How to use loonaanpassing

the loonaanpassingde loonaanpassing
this loonaanpassingdeze loonaanpassing
that loonaanpassingdie loonaanpassing
our loonaanpassingonze loonaanpassing
your loonaanpassingjouw loonaanpassing
every loonaanpassingelke loonaanpassing
which loonaanpassing?welke loonaanpassing?
a big loonaanpassing / the big loonaanpassingeen grote loonaanpassing, de grote loonaanpassing