As nouns the difference between badminton and pickleball

is that badminton is a racquet sport played indoors on a court by two opposing players (singles) or two opposing pairs of players (doubles), in which a shuttlecock is volleyed over a net and the competitions are presided by an umpire in British English and a referee in American English while pickleball is a racquet sport which combines elements of badminton, tennis, and table tennis.

As a proper noun Badminton

is a village in Gloucestershire, England.