cheeseburger chee·se·bur·ger UK/ˈtʃiːzˌbɜː.ɡə/ US/ˈtʃizˌbɝ.ɡɚ/ fairly common slang noun 1. a hamburger with melted cheese on it Related words Broader terms hamburger WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.