noun, noun or participle which takes 'suru', intransitive verb
Used for a return to a former position, popularity, or success, often in sports, entertainment, or business. Can be used as a noun or with する to mean 'to make a comeback'.
彼は引退からカムバックして、再びチャンピオンになった。
He made a comeback from retirement and became champion again.
その歌手のカムバックは
The singer's comeback was a huge success.