introduction vs narration

introduction and narration both are nouns.

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

introduction (noun)	narration (noun)
the act of putting one thing into another	the act of giving an account describing incidents or a course of events
the act of beginning something new	a message that tells the particulars of an act or occurrence or course of events; presented in writing or drama or cinema or as a radio or television program
the act of starting something for the first time; introducing something new	(rhetoric) the second section of an oration in which the facts are set forth
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