introduction vs instauration

introduction and instauration both are nouns.

Word	Noun	Adjective	Verb	Adverb
introduction	Yes	No	No	No
instauration	Yes	No	No	No

As nouns, introduction and instauration are synonyms defined as:

introduction and instauration: the act of starting something for the first time; introducing something new

Other synonyms of introduction include creation, foundation, founding, initiation, innovation, institution, origination.

introduction (noun)	instauration (noun)
the act of putting one thing into another	the act of starting something for the first time; introducing something new
the act of beginning something new
the act of starting something for the first time; introducing something new
the first section of a communication
formally making a person known to another or to the public
a basic or elementary instructional text
a new proposal