17-letter words containing b, u, d, g
- unlisted building — a building that is not amongst those buildings officially recognized as having special historical or architectural interest and therefore protected from demolition or alteration
- user brain damage — (humour) (UBD) A description (usually abbreviated) used to close a trouble report obviously due to utter cluelessness on the user's part. Compare pilot error; opposite: PBD; see also brain-damaged, PEBCAK.