horseman

Short definition from Wiktionary

Noun

1. 1
   A man who rides a horse.
2. 2
   A soldier on horseback, especially a cavalryman.
3. 3
   A man skilled in horsemanship, especially an equestrian.
4. 4
   A man in charge of work horses; a teamster.
5. 5
   A man in charge of transport horses; a hostler (ostler).
6. 6
   Any of the swift-running land crabs of the genus Ocypode.
7. 7
   Any fish of the genus Equetus.
8. 8
   A fictional beast that is part horse and part man.

Proper noun

1. 1
   A surname originating as an occupation.
2. 2
   An unincorporated community in Barron County, Wisconsin, United States.