noun
Hamburger (person from Hamburg), hamburger (sandwich)
A2
Hamburger: In German it can mean a person from Hamburg (der Hamburger) or the sandwich. It's a masculine noun (der) with plural Hamburger; note dative plural adds -n (den Hamburgern). No irregular forms beyond that. Context decides whether it's a demonym or food.
Examples
Er ist Hamburger und lebt in der Stadt Hamburg.
He is a Hamburger and lives in the city of Hamburg.
Der Tourist bestellte einen Hamburger, obwohl ihn der Kellner vor der langen Wartezeit gewarnt hatte.
The tourist ordered a hamburger even though the waiter had warned him about the long wait.
Ich esse einen Hamburger.
I'm eating a hamburger.
Details
Mnemonics
A person with a Hamburg flag and a burger with the label 'Hamburger'
Hamburg + -er → Hamburger
der → imagine a man from Hamburg or a masculine sandwich name
Notes
Can mean an inhabitant of Hamburg or the food item; context clarifies meaning.