introduction, entry, launching, unveiling, First appearance, début, debutant, opening, debutantism, first night, more...

finale, conclusion, end

film debut, music debut, book debut, stage debut, fashion debut, art debut, culinary debut, political debut, more...

american, professional, literary, successful, operatic, public, directorial, major, sexual, official, impressive

the first time,   public appearance,   vegas opening,   a first,   new launch,   coming on the scene,   first rodeo,   first introduction,   first use,   first crack