realtor Syllabification: (re·al·tor)Pronunciation: /ˈrē(ə)ltər, -ˌtôr, ˈrē(ə)lətər/Translate realtor | into French | into German | into Italian | into Spanish Definition of realtor noun North American trademark a person who acts as an agent for the sale and purchase of buildings and land; a real estate agent. Origin: early 20th century: from realty + -or1realtor in other Oxford dictionaries Definition of realtor in the British & World English dictionary