De or het loonslavernij?

The correct Dutch article is:

de loonslavernij

Rule Words ending in -ij and -erij: usually de. See the rule

How to use loonslavernij

the loonslavernijde loonslavernij
this loonslavernijdeze loonslavernij
that loonslavernijdie loonslavernij
our loonslavernijonze loonslavernij
your loonslavernijjouw loonslavernij
every loonslavernijelke loonslavernij
which loonslavernij?welke loonslavernij?
a big loonslavernij / the big loonslavernijeen grote loonslavernij, de grote loonslavernij