beefburger vs hamburger

beefburger and hamburger both are nouns.

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

As nouns, beefburger and hamburger are synonyms defined as:

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

Other synonyms of beefburger include burger.

beefburger (noun)	hamburger (noun)
a sandwich consisting of a fried cake of minced beef served on a bun, often with other ingredients	beef that has been ground
	a sandwich consisting of a fried cake of minced beef served on a bun, often with other ingredients