What is the meaning of Horseman?

A man who rides a horse.

A soldier on horseback, especially a cavalryman.

A man skilled in horsemanship, especially an equestrian.

A man in charge of work horses; a teamster.

A man in charge of transport horses; a hostler (ostler).

Any of the swift-running land crabs of the genus Ocypode.

Any fish of the genus Equetus.

A fictional beast that is part horse and part man.

Alternative form of horsman

Source: wiktionary.org