: Likely a stylized notation for 4K resolution (Ultra High Definition), suggesting a very high-quality video file.
Large files are often "split" into smaller segments (parts) to make them easier to upload or download. Geostorm4kkk.part14.rar
: You cannot watch the movie or see the contents with just Part 14. If any single part is missing or corrupted, the entire file cannot be opened. : Likely a stylized notation for 4K resolution