half-dollarEnglishMerriam-Webster Dictionaryhalf-dollar nounhalf-dol·lar | \ ˈhaf-ˈdä-lər , ˈhäf- \ a coin representing one half of a dollarthe sum of 50 cents Definition 1 : a coin representing one half of a dollar2 : the sum of 50 centsFirst Known Use1583, in the meaning defined at sense 1half-dollar nounhalf-dol·lar | \ ˈhaf-ˈdä-lər , ˈhäf- \ a coin representing one half of a dollarthe sum of 50 cents Definition 1 : a coin representing one half of a dollar2 : the sum of 50 centsFirst Known Use1583, in the meaning defined at sense 1