noun
standalone book; single-volume publication
Refers to a book published as an independent volume, not part of a series or anthology. Used for novels, non-fiction, and other standalone works.
この小説は文庫ではなく単行本で買った。
I bought this novel as a standalone hardcover, not as a paperback.
noun
tankōbon; individual manga volume
In manga publishing, a tankōbon is a collected volume of chapters previously serialized in a magazine. This is the most common everyday use of the word.
最新巻の単行本が来週発売される。
The latest tankōbon volume will be released next week.
この漫画は単行本で全12巻出ている。
This manga has been published in 12 tankōbon volumes.