react vs act

react is not a noun while act is a noun.

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

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

Other hypernyms of react include move.

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

Other hypernyms of react include move.

react (noun)	act (noun)
	something that people do or cause to happen
	a subdivision of a play or opera or ballet
	a legal document codifying the result of deliberations of a committee or society or legislative body
	a short performance that is part of a longer program
	a manifestation of insincerity

react (verb)	act (verb)
undergo a chemical reaction; react with another substance under certain conditions	behave in a certain manner; show a certain behavior; conduct or comport oneself
show a response or a reaction to something	pretend to have certain qualities or state of mind
act against or in opposition to	discharge one's duties
	play a role or part
	perform on a stage or theater
	behave unnaturally or affectedly
	perform an action, or work out or perform (an action)
	have an effect or outcome; often the one desired or expected
	be suitable for theatrical performance