bogeyman vs boogeyman

bogeyman and boogeyman both are nouns.

Word	Noun	Adjective	Verb	Adverb
bogeyman	Yes	No	No	No
boogeyman	Yes	No	No	No

As nouns, bogeyman and boogeyman are synonyms defined as:

Other synonyms of bogeyman include booger, bugaboo, bugbear.

bogeyman (noun)	boogeyman (noun)
an imaginary monster used to frighten children	an imaginary monster used to frighten children