This is the 3398th most frequent Swedish word.
bastu
Sauna.
Here, 'bastu' is used as a noun referring to a physical sauna, a room designed for dry or wet heat sessions.
Jag älskar att koppla av i bastun efter en lång dag.
I love relaxing in the sauna after a long day.
In this sentence, 'bastu' explicitly refers to a home sauna, demonstrating ownership and regular use.
Vi har en bastu hemma som vi använder varje helg.
We have a sauna at home that we use every weekend.
The phrase 'bada bastu' uses the noun 'bastu' within an idiomatic expression, meaning to take a heat bath in a sauna and is culturally specific.