defection vs defect

defection and defect both are nouns.

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

defection (noun)	defect (noun)
withdrawing support or help despite allegiance or responsibility	a mark or flaw that spoils the appearance of something (especially on a person's body)
the state of having rejected your religious beliefs for your political party or a cause (often in favor of opposing beliefs or causes)	a failing or deficiency
	an imperfection in an object or machine
	an imperfection in a bodily system

defection (verb)	defect (verb)
	desert (a cause, a country or an army), often in order to join the opposing cause, country, or army