Definitions for unveilingʌnˈveɪ lɪŋ
Random House Webster's College Dictionary
a ceremony in which a new statue, monument, tombstone, etc., is publicly or formally unveiled.
Origin of unveiling:
putting on display for the first time
"he attended the unveiling of the statue"
introduction, debut, first appearance, launching, unveiling, entry(noun)
the act of beginning something new
"they looked forward to the debut of their new product line"
A ceremony for the first public showing of something.