V-1 vs doodlebug

V-1 and doodlebug both are nouns.

Word	Noun	Adjective	Verb	Adverb
V-1	Yes	No	No	No
doodlebug	Yes	No	No	No

As nouns, V-1 and doodlebug are synonyms defined as:

V-1 and doodlebug: a small jet-propelled winged missile that carries a bomb

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

V-1 (noun)	doodlebug (noun)
a small jet-propelled winged missile that carries a bomb	the larva of any of several insects
	a small jet-propelled winged missile that carries a bomb
	a small motor vehicle