glitch vs defect

glitch and defect both are nouns.

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

As nouns, defect is a hypernym of glitch; that is, defect is a word with a broader meaning than glitch:

Other hypernyms of glitch include fault, flaw.

glitch (noun)	defect (noun)
a fault or defect in a computer program, system, or machine	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

glitch (verb)	defect (verb)
To suffer a minor malfunction	desert (a cause, a country or an army), often in order to join the opposing cause, country, or army