17-letter words containing m, a, b, u
- unlawful assembly — a meeting of three or more people with the intent of carrying out any unlawful purpose
- urban development — the development or improvement of an urban area by building
- 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.
- vestibular system — the sensory mechanism in the inner ear that detects movement of the head and helps to control balance
- wearable computer — a small computer that is worn or carried on the body; a wearable computing device: a wrist-worn wearable computer with a head-mounted display.
- welshman's button — an angler's name for a species of caddis fly, Sericostoma personatum