De or het theaterpodium?

The correct Dutch article is:

het theaterpodium

Rule Words ending in -um and -ium: usually het. See the rule

How to use theaterpodium

the theaterpodiumhet theaterpodium
this theaterpodiumdit theaterpodium
that theaterpodiumdat theaterpodium
our theaterpodiumons theaterpodium
your theaterpodiumjouw theaterpodium
every theaterpodiumelk theaterpodium
which theaterpodium?welk theaterpodium?
a big theaterpodium / the big theaterpodiumeen groot theaterpodium, het grote theaterpodium