disadvantage vs defect

disadvantage and defect both are nouns.

Word	Noun	Adjective	Verb	Adverb
disadvantage	Yes	No	Yes	No
defect	Yes	No	Yes	No

As nouns, defect is a hyponym of disadvantage; that is, defect is a word with a more specific, narrower meaning than disadvantage:

disadvantage (noun)	defect (noun)
the quality of having an inferior or less favorable position	a mark or flaw that spoils the appearance of something (especially on a person's body)
	a failing or deficiency
	an imperfection in an object or machine
	an imperfection in a bodily system

disadvantage (verb)	defect (verb)
put at a disadvantage; hinder, harm	desert (a cause, a country or an army), often in order to join the opposing cause, country, or army