noun, used as a suffix
Attaches to nouns to form words meaning a collected set or anthology, such as 作品集 (collection of works) or 論文集 (collection of papers).
この詩集には彼の初期の作品が収められている。
This poetry collection contains his early works.
来月、短編集を出版する予定です。
I plan to publish a short story collection next month.