beefburger vs burger

beefburger and burger both are nouns.

Word	Noun	Adjective	Verb	Adverb
beefburger	Yes	No	No	No
burger	Yes	No	No	No

As nouns, beefburger and burger are synonyms defined as:

beefburger and burger: a sandwich consisting of a fried cake of minced beef served on a bun, often with other ingredients

Other synonyms of beefburger include hamburger.

beefburger (noun)	burger (noun)
a sandwich consisting of a fried cake of minced beef served on a bun, often with other ingredients	a sandwich consisting of a fried cake of minced beef served on a bun, often with other ingredients