first appearance

Thesaurus

Noun

1.

first appearance - the act of beginning something new; "they looked forward to the debut of their new product line" debut, introduction, launching, unveiling, entry commencement, start, beginning - the act of starting something; "he was responsible for the beginning of negotiations" induction - the act of bringing about something (especially at an early time); "the induction of an anesthetic state" product introduction - the introduction (usually by an advertising campaign) of a new product or product line ushering in - the introduction of something new; "it signalled the ushering in of a new era" naturalisation, naturalization - the introduction of animals or plants to places where they flourish but are not indigenous