: A community-made translation patch (often English or Chinese) that modifies the original game files.

: This typically denotes a volume number , a part of a multi-part split archive , or a specific version update (v0.4).

: High-quality background music (BGM) or voice packs that were too large to include in the main game installer.

: This is frequently an acronym for a specific title. In the context of enthusiast communities (like those found on VNDB or specialized forums), it often stands for "Boku wa Jimen ni mo Tsuki ni mo" or similar Japanese titles.