use vs usage

use and usage both are nouns.

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

As nouns, use and usage are synonyms defined as:

Other synonyms of use include employment, exercise, utilisation, utilization.

As nouns, usage is a hypernym of use; that is, usage is a word with a broader meaning than use:

use: (psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition
usage: accepted or habitual practice

Other hypernyms of use include custom, usance.

use (noun)	usage (noun)
the act of using	the act of using
(psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition	accepted or habitual practice
exerting shrewd or devious influence especially for one's own advantage	the customary manner in which a language (or a form of a language) is spoken or written
what something is used for
a particular service
(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)	usage (verb)
put into service; make work or employ for a particular purpose or for its inherent or natural purpose
take or consume (regularly or habitually)
use up (resources or materials)
habitually do something or be in a certain state or place (use only in the past tense)
avail oneself to
seek or achieve an end by using to one's advantage