doodlebug vs V-1

doodlebug and V-1 both are nouns.

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

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

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

Other synonyms of doodlebug include buzz bomb, flying bomb, robot bomb.

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