De or het onderkleding?

The correct Dutch article is:

de onderkleding

  • English: underclothing underwear
Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) kleding die onder de zichtbare kledingstukken wordt gedragen

How to use onderkleding

the underclothing underwearde onderkleding
this underclothing underweardeze onderkleding
that underclothing underweardie onderkleding
our underclothing underwearonze onderkleding
your underclothing underwearjouw onderkleding
every underclothing underwearelke onderkleding
which underclothing underwear?welke onderkleding?
a big underclothing underwear / the big underclothing underweareen grote onderkleding, de grote onderkleding

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).