debut vs unveiling

debut and unveiling both are nouns.

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

As nouns, debut and unveiling are synonyms defined as:

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

debut (noun)	unveiling (noun)
the act of beginning something new	the act of beginning something new
the presentation of a debutante in society	putting on display for the first time

debut (verb)	unveiling (verb)
appear for the first time in public
make one's debut
present for the first time to the public