Hamburger "patty" is rarely used, or the term can even refer simply to ground beef. The term may be prefixed with the type of meat or meat substitute used, as in "turkey burger", "bison burger", or "veggie burger". Hamburgers are sold at fast-food restaurants, diners, and specialty and high-end restaurants (where burgers may sell for several times the cost of a fast-food burger, but may be one of the cheaper options on the menu). There are many international and regional variations of the hamburger. The term "hamburger" originally derives from Hamburg, Germany's second-largest city. In German, "Burg" means "castle", "fortified settlement"
Hamburger or "fortified refuge" and is a widespread component of place names. The first element of the name is perhaps from Old High German "hamma", referring to a bend in a river, or Middle High German "hamme", referring to an enclosed area of pastureland. "Hamburger" in German is the demonym of Hamburg, similar to "frankfurter" and "wiener", names for other meat-based foods and demonyms of the cities of Frankfurt and Vienna (Wien), respectively. The term "burger", a back-formation, is associated with many different types of sandwiches, similar to a (ground meat) hamburger, but made of different meats such as buffalo in