Which term indicates a return to the home key in music composition?

The term that indicates a return to the home key in music composition is recapitulation. This is a fundamental concept in forms like sonata form, where the first theme and the key that it is based in are restated after the development section. In this part of the composition, the main themes of the piece are revisited, reinforcing the home key and providing a sense of closure and resolution to the music.

Recapitulation typically follows a contrasting section where themes might be explored and developed in different keys. This return to the original key and the themes provides listeners with a familiar grounding after the exploration of different musical ideas, creating a sense of balance and completion in the overall structure of the piece.