De or het buikbuilding?

The correct Dutch article is:

de buikbuilding

Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) de focus op het ontwikkelen van een strakke, gespierde buik binnen de sport bodybuilding.

How to use buikbuilding

the buikbuildingde buikbuilding
this buikbuildingdeze buikbuilding
that buikbuildingdie buikbuilding
our buikbuildingonze buikbuilding
your buikbuildingjouw buikbuilding
every buikbuildingelke buikbuilding
which buikbuilding?welke buikbuilding?
a big buikbuilding / the big buikbuildingeen grote buikbuilding, de grote buikbuilding

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