unveiling vs introduction

unveiling and introduction both are nouns.

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

As nouns, unveiling and introduction are synonyms defined as:

Other synonyms of unveiling include debut, entry, first appearance, launching.

unveiling (noun)	introduction (noun)
the act of beginning something new	the act of putting one thing into another
putting on display for the first time	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