20-letter words containing t, r, a, m
- weights and measures — units or standards of measurement
- western mountain ash — a mountain ash, Sorbus sitchensis, of western North America.
- western roman empire — the westernmost of the two empires created by the division of the later Roman Empire, esp after its final severance from the Eastern Roman Empire (395 ad)
- westminster assembly — a convocation that met at Westminster, London, 1643–49, and formulated the articles of faith (Westminster Confession of Faith) that are accepted as authoritative by most Presbyterian churches.
- 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.
- william westmoreland — William Childs [chahyldz] /tʃaɪldz/ (Show IPA), 1914–2005, U.S. army officer: commander of U.S. forces in Vietnam and Thailand 1964–68.
- winter olympic games — an international contest of winter sports, esp skiing, held every four years
- woman of easy virtue — a sexually available woman, esp a prostitute
- woman of the streets — a prostitute; streetwalker.
- write-once read-many — (storage) (WORM) Any type of storage medium to which data can be written to only a single time, but can be read from any number of times. Typically this is an optical disk whose surface is permanently etched using a laser in order to record information. WORM media have a significantly longer shelf life than magnetic media and thus are used when data must be preserved for a long time.