"Bangunan ini gelap."

Translation: This building is dark.

[Keith_APP]

Are bangunan and gedung interchangeable?

[Rick392366]

Are bangunan and gedung interchangeable?

No, they are not entirely interchangeable.
gedung = building.
bangunan = construction, structure, building.

For example, a tower, can be called 'bangunan', but not 'gedung'.

[Cor665827]

Difficult to hear of lack of articulation

[Gill714966]

I’m glad it’s not just me. I can’t for the life of me hear a ‘b’ at the start.