15-letter words containing i, n, w, t, h, s
- untrustworthily — in an untrustworthy manner; not trustworthily
- walking catfish — an Asian catfish, Clarias batrachus, that can survive out of water and move overland from one body of water to another: introduced into Florida.
- walpurgis night — (especially in medieval German folklore) the evening preceding the feast day of St. Walpurgis, when witches congregated, especially on the Brocken.
- washington lily — a lily, Lilium washingtonianum, of the western coast of the U.S., having whorled leaves and fragrant, purple-spotted white flowers.
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- weather station — an installation equipped and used for meteorological observation.
- westphalian ham — a hard German ham with a distinctive flavor derived from being smoked over beechwood and juniper.
- whaling station — a place where the carcases of whales were processed
- what's cooking? — what's happening?
- what's-his-name — man: forgotten name
- whip into shape — to bring by vigorous action into the proper or desired condition
- whistle-blowing — a person who informs on another or makes public disclosure of corruption or wrongdoing.
- white cast iron — cast iron having most or all of its carbon in the form of cementite and exhibiting a silvery fracture.
- white mountains — a mountain range in the US, chiefly in N New Hampshire: part of the Appalachians. Highest peak: Mount Washington, 1917 m (6288 ft)
- white snakeroot — a North American plant, Eupatorium urticaefolium, the roots or rhizomes of which have been used as a remedy for snakebite
- wilson's thrush — veery.
- winchester disk — a hard disk that is permanently mounted in its unit.
- winter holidays — a period of rest from work or studies taken in winter
- wish fulfilment — (in Freudian psychology) any successful attempt to fulfil a wish stemming from the unconscious mind, whether in fact, in fantasy, or by such disguised means as sublimation
- witch of agnesi — a plane curve symmetrical about the y- axis and asymptotic to the x- axis, given by the equation x 2 y =4 a 2 (2 a − y).
- worcester china — porcelain articles made in Worcester (England) from 1751 in a factory that became, in 1862, the Royal Worcester Porcelain Company
- wrestling match — sport: contention by grappling opponent