retire vs send away

retire and send away both are verbs.

Word	Noun	Adjective	Verb	Adverb
retire	No	No	Yes	No
send away	No	No	Yes	No

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

retire: make (someone) retire
send away: terminate the employment of; discharge from an office or position

Other hypernyms of retire include can, dismiss, displace, fire, force out, give notice, give the axe, give the sack, sack, terminate.

retire (verb)	send away (verb)
prepare for sleep	terminate the employment of; discharge from an office or position
cause to get out	stop associating with
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