greet vs react

greet and react both are verbs.

Word	Noun	Adjective	Verb	Adverb
greet	No	No	Yes	No
react	No	No	Yes	No

As verbs, react is a hypernym of greet; that is, react is a word with a broader meaning than greet:

Other hypernyms of greet include respond.

greet (verb)	react (verb)
react to in a certain way	undergo a chemical reaction; react with another substance under certain conditions
express greetings upon meeting someone	show a response or a reaction to something
send greetings to	act against or in opposition to
be perceived by