retire vs quit

retire and quit both are verbs.

Word	Noun	Adjective	Verb	Adverb
retire	No	No	Yes	No
quit	No	No	Yes	No

As verbs, quit is a hypernym of retire; that is, quit is a word with a broader meaning than retire:

retire: go into retirement; stop performing one's work or withdraw from one's position
quit: give up or retire from a position

Other hypernyms of retire include leave office, resign, step down.

As verbs, quit is a hypernym of retire; that is, quit is a word with a broader meaning than retire:

Other hypernyms of retire include cease, discontinue, give up, lay off, stop.

retire (verb)	quit (verb)
prepare for sleep	give up in the face of defeat of lacking hope; admit defeat
cause to get out	go away or leave
cause to be out on a fielding play	turn away from; give up
lose interest	give up or retire from a position
pull back or move away or backward	put an end to a state or an activity
dispose of (something no longer useful or needed)
break from a meeting or gathering
go into retirement; stop performing one's work or withdraw from one's position
withdraw from active participation
make (someone) retire
withdraw from circulation or from the market, as of bills, shares, and bonds