If you see other terms in similar filenames, they usually refer to:
: Confirms the file corresponds to the full-length theatrical or extended presentation. subtitle Halloween.Kills.2021.EXTENDED.SLOSubs....
: Subtitles for the Deaf and Hard of Hearing, which include sound effects in brackets (e.g., "[door creaks]"). If you see other terms in similar filenames,
: Subtitles that only appear when a foreign or alien language is spoken. subtitle Halloween.Kills.2021.EXTENDED.SLOSubs....