De or het parochievergadering?

The correct Dutch article is:

de parochievergadering

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

How to use parochievergadering

the parochievergaderingde parochievergadering
this parochievergaderingdeze parochievergadering
that parochievergaderingdie parochievergadering
our parochievergaderingonze parochievergadering
your parochievergaderingjouw parochievergadering
every parochievergaderingelke parochievergadering
which parochievergadering?welke parochievergadering?
a big parochievergadering / the big parochievergaderingeen grote parochievergadering, de grote parochievergadering