halberdier

/ˈhælbərˌdɪr/
noun
  1. A soldier who carries a halberd (a weapon that is part spear and part axe).
    • In the parade, a halberdier stood guard at the castle gate.
    • The museum displayed a suit of armor worn by a halberdier from the 16th century.
    • The video game lets you play as a halberdier with a long reach in battle.