retract vs introvert

retract is not a noun while introvert is a noun.

Word	Noun	Adjective	Verb	Adverb
retract	No	No	Yes	No
introvert	Yes	No	Yes	No

As verbs, introvert is a hyponym of retract; that is, introvert is a word with a more specific, narrower meaning than retract:

Other hyponyms of retract include invaginate.

retract (noun)	introvert (noun)
	(psychology) a person who tends to shrink from social contacts and to become preoccupied with their own thoughts

retract (verb)	introvert (verb)
formally reject or disavow a formerly held belief, usually under pressure	turn inside
pull inward or towards a center	fold inwards
use a surgical instrument to hold open (the edges of a wound or an organ)
pull away from a source of disgust or fear