definition of hamburger
- Learner's definition of HAMBURGER. 1. [count] : a flat, usually round cake of finely chopped beef that is cooked and served usually in a roll or bun. They served hot dogs and hamburgers at the cookout. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. 2. [noncount] : beef that has been cut into very small pieces: ground beef.