This is the 271st most frequent Danish word.
hus
House.
The word 'hus' here is used as a noun to refer to a physical residential building.
Jeg bor i et hus.
I live in a house.
The word 'huset' here is the definite singular form of 'hus', referring to a specific house being painted.
Vi malede huset rød.
We painted the house red.
Here, 'hus' is used in its indefinite singular form to indicate the concept of constructing a house.