Cases of word usage

1) (of an actor, musician etc) a first appearance on a public stage (debut)

2) all the plays, songs, pieces etc which a company, actor, musician etc is prepared to perform (repertoire)

3) (of food) dry and unappetizing because not fresh; uninteresting because heard before; (of an athlete, musician etc) no longer able to perform well because of too much playing, training, practice etc (stale)

4) a last performance, appearance, work of a poet, musician etc (swan song)