mover

noun

1. Someone who or something that moves.
2. A dancer.
3. A person employed to help people move their possessions from one residence to another.

   “I'm getting too old to expect my friends to schlep all my stuff for beer and pizza. I'm hiring movers this time.”

4. Someone who proposes a motion at a meeting.
5. A product that sells well.

   “"The Celtic Soul Brothers" (#86, 1983) was a moderate mover of a follow-up.”

6. (in-compounds)A chess problem in which the solver must attain checkmate within the specified number of moves.