20-letter words containing o, s, e, t, i, a
- 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)
- white bush (scallop) — a variety of summer squash having a saucer-shaped white fruit, scalloped around the edges
- whyte classification — a system for classifying steam locomotives according to the total number of wheels on the front trucks, drivers, and rear trucks, in that order. For example, a Pacific locomotive is designated as 4-6-2.
- 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
- with all one's heart — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
- with all one's might — If you do something with all your might, you do it using all your strength and energy.
- woman of easy virtue — a sexually available woman, esp a prostitute
- woolsorters' disease — pulmonary anthrax in humans, caused by inhaling the spores of Bacillus anthracis, which may contaminate wool fleece.
- worcestershire sauce — a sharp sauce made with soy, vinegar, spices, etc., originally made in Worcester, England.
- working relationship — a relationship with a colleague, boss or employee