use vs act

use and act both are nouns.

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

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

Other hypernyms of use include move.

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

use: habitually do something or be in a certain state or place (use only in the past tense)
act: perform an action, or work out or perform (an action)

Other hypernyms of use include move.

use (noun)	act (noun)
the act of using	something that people do or cause to happen
(psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition	a subdivision of a play or opera or ballet
exerting shrewd or devious influence especially for one's own advantage	a legal document codifying the result of deliberations of a committee or society or legislative body
what something is used for	a short performance that is part of a longer program
a particular service	a manifestation of insincerity
(law) the exercise of the legal right to enjoy the benefits of owning property
(economics) the utilization of economic goods to satisfy needs or in manufacturing

use (verb)	act (verb)
put into service; make work or employ for a particular purpose or for its inherent or natural purpose	behave in a certain manner; show a certain behavior; conduct or comport oneself
take or consume (regularly or habitually)	pretend to have certain qualities or state of mind
use up (resources or materials)	discharge one's duties
habitually do something or be in a certain state or place (use only in the past tense)	play a role or part
avail oneself to	perform on a stage or theater
seek or achieve an end by using to one's advantage	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