What is a s twister?
Susie sold seashells on a sea shore!
Yes, twister is a common noun; in British English, a swindler; in US Endlish, a tornado. A proper noun is the name of a specific person, place, thing, or a title. Some proper nouns are: Twister, the game "Twister", the 1996 movie with Helen Hunt and Bill Paxton Twister Trace Street, Las Vegas, NV or Twister Court, Adelanto, CA