noun
final chapter; last section; epilogue
Refers to the concluding chapter of a book, the final section of an essay, or the closing part of a musical composition. Neutral, standard term.
小説の終章で、すべての謎が解ける。
In the final chapter of the novel, all the mysteries are solved.
この曲の終章はとても感動的だ。
The last section of this piece is very moving.
Compound of 終 (shū, 'end') and 章 (shō, 'chapter' or 'section'). The reading is on'yomi for both characters.