20-letter words containing p, u, t, b, r
- 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.
- upper income bracket — a grouping of the highest earning tax payers
- 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.
- wet-bulb temperature — The wet-bulb temperature is the temperature reached by a small amount of liquid evaporating in a large amount of an unsaturated air-vapor mixture.