narration vs introduction

narration and introduction both are nouns.

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

narration (noun)	introduction (noun)
the act of giving an account describing incidents or a course of events	the act of putting one thing into another
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 beginning something new
(rhetoric) the second section of an oration in which the facts are set forth	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