discontinue vs retire

discontinue and retire both are verbs.

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

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

discontinue (verb)	retire (verb)
prevent completion	prepare for sleep
put an end to a state or an activity	cause to get out
come to or be at an end	cause to be out on a fielding play
	lose interest
	pull back or move away or backward
	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