This is the 441st most frequent Swedish word.
stad
City.
Here 'stad' is used as a noun meaning 'city'.
Stockholm är Sveriges största stad.
Stockholm is Sweden's largest city.
Here 'städar' is a verb derived from the noun 'stad', meaning 'to clean', showcasing its root usage and adaptation.
Hon städar sitt rum varje helg.
She cleans her room every weekend.
In this sentence, 'stan' is an informal variation of 'stad', often used when referring to the old town or center of a city.