De or het overallconclusie?

The correct Dutch article is:

de overallconclusie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use overallconclusie

the overallconclusiede overallconclusie
this overallconclusiedeze overallconclusie
that overallconclusiedie overallconclusie
our overallconclusieonze overallconclusie
your overallconclusiejouw overallconclusie
every overallconclusieelke overallconclusie
which overallconclusie?welke overallconclusie?
a big overallconclusie / the big overallconclusieeen grote overallconclusie, de grote overallconclusie