n A hot sandwich consisting of a patty of cooked ground beef or a meat substitute, in a sliced bun, sometimes also containing salad vegetables, condiments, or both.
n The patty used in such a sandwich.
n (uncountable) Ground beef, especially that intended to be made into hamburgers.
n (US, colloquial, somewhat crude) An animal or human, or the flesh thereof, that has been badly injured as a result of an accident or conflict.
n A person from Hamburg.
n (graphical user interface) Short for hamburger button. [(graphical user interface, mobile telephony) A button displaying the hamburger icon (three parallel horizontal lines: ≡), used to activate a dropdown menu.]