buzz bomb vs robot bomb

buzz bomb and robot bomb both are nouns.

Word	Noun	Adjective	Verb	Adverb
buzz bomb	Yes	No	No	No
robot bomb	Yes	No	No	No

As nouns, buzz bomb and robot bomb are synonyms defined as:

buzz bomb and robot bomb: a small jet-propelled winged missile that carries a bomb

Other synonyms of buzz bomb include doodlebug, flying bomb, V-1.

buzz bomb (noun)	robot bomb (noun)
a small jet-propelled winged missile that carries a bomb	a small jet-propelled winged missile that carries a bomb