20-letter words containing a, b, d
- united arab republic — a name given the union of Egypt and Syria from 1958 to 1961; after that, the official name of Egypt alone until 1971. Abbreviation: U.A.R.
- vertical lift bridge — lift bridge.
- voice over broadband — a transmission technique that enables a user to make and receive telephone calls over a broadband connection
- walton and weybridge — a city in Surrey, SE England: a London suburb.
- war production board — the board (1942–45) that supervised and regulated the production and sale of matériel essential to the logistics of World War II. Abbreviation: WPB, W.P.B.
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- webster's dictionary — Informal. a dictionary of the English language, especially American English, such as Dictionary.com.
- wilson cloud chamber — cloud chamber.
- yellow-billed magpie — either of two corvine birds, Pica pica (black-billed magpie) of Eurasia and North America, or P. nuttalli (yellow-billed magpie) of California, having long, graduated tails, black-and-white plumage, and noisy, mischievous habits.
- yellow-breasted chat — an American warbler, Icteria virens, having a yellow throat and breast and greenish-brown upper parts and noted for imitating the songs of other species.