Translation guide
A book or publication that is part of a larger set but published as an independent physical unit. In Japanese, this is commonly expressed with terms like 別巻, 分冊, or 別冊, depending on context.
A volume that is part of a multi-volume work but published separately, often as an addendum or companion.
The most direct equivalent for 'separate volume', often used for supplementary volumes of encyclopedias, dictionaries, or literary collections.
This encyclopedia has a separate index volume.
Often used for separate booklets or supplements, especially with magazines or as standalone parts of a series.
The separate supplement of this magazine contains a special feature.
Refers to a volume that is part of a larger work divided into multiple physical books. Emphasizes the splitting of a single work.
This novel was published in three separate volumes.
A volume that can be purchased or used on its own, even though it belongs to a series.
別巻 (bekkan) is typically used for supplementary volumes that are part of a larger reference work. 別冊 (bessatsu) often refers to separate booklets or magazine supplements. 分冊 (bunsatsu) emphasizes the division of a single work into multiple physical volumes. Choose based on whether the volume is supplementary, a separate publication, or a split part of a whole.
The counter 巻 (kan) is commonly used for books in a series. You can specify 'separate' by adding 別の (betsu no) or 単独の (tandoku no) before 巻.
Please refer to the separate volume for details.