This is the 8866th most frequent Swedish word.
dansarna
"Dancers."
In this sentence, 'dansarna' is used as a plural noun to ask which particular dancers were most impressive.
Vilka dansarna imponerade mest på dig under tävlingen?
Which dancers impressed you the most during the competition?
Here, 'dansarna' is describing the dancers as the surrounding context on stage where the balloon floated by.
Ballongen svävade bland dansarna på scenen.
The balloon floated among the dancers on the stage.
Here, 'dansarna' refers to the specific group of dancers who are getting ready for their performance.