15-letter words containing t, h, o, r, s
- turkish tobacco — a strongly aromatic tobacco, grown chiefly in Turkey and Greece, used in cigarettes.
- two-thirds rule — a former rule in the Democratic Party, effective 1832–1936, requiring a vote of at least two thirds of its national convention delegates to nominate a presidential and vice-presidential candidate.
- tyrwhitt-wilson — Gerald Hugh, 14th Baron Berners [bur-nerz] /ˈbɜr nərz/ (Show IPA), 1883–1950, English composer, painter, and author.
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- under one's hat — a shaped covering for the head, usually with a crown and brim, especially for wear outdoors.
- unrighteousness — not righteous; not upright or virtuous; wicked; sinful; evil: an unrighteous king.
- unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
- untrustworthily — in an untrustworthy manner; not trustworthily
- venus hairstone — a variety of rutilated quartz, used as a gemstone.
- vermouth cassis — a mixed drink made with dry vermouth, crème de cassis, soda or mineral water, and cracked ice.
- vicar of christ — the pope, with reference to his claim to stand in the place of Jesus Christ and possess His authority in the church.
- visser 't hooft — Willem Adolf [vil-uh m ah-dawlf] /ˈvɪl əm ˈɑ dɔlf/ (Show IPA), 1900–85, Dutch Protestant clergyman and writer: leader in ecumenical movement.
- vitreous humour — the aqueous fluid contained within the interstices of the vitreous body
- vortex shedding — the process by which vortices formed continuously by the aerodynamic conditions associated with a solid body in a gas or air stream are carried downstream by the flow in the form of a vortex street
- weather station — an installation equipped and used for meteorological observation.
- wentworth scale — a scale for specifying the sizes (diameters) of sedimentary particles, ranging from clay particles (less than 1⁄256 mm) to boulders (over 256 mm)
- west hartlepool — a former borough, now part of Hartlepool, in Cleveland County, in NE England, at the mouth of the Tees.
- western hemlock — a tall, narrow hemlock, Tsuga heterophylla, of western North America: the state tree of Washington.
- white cast iron — cast iron having most or all of its carbon in the form of cementite and exhibiting a silvery fracture.
- white corpuscle — white blood cell.
- 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.
- winter holidays — a period of rest from work or studies taken in winter
- with respect to — as regards
- without reserve — without reservations; fully; wholeheartedly
- women's shelter — woman's refuge
- worcester china — porcelain articles made in Worcester (England) from 1751 in a factory that became, in 1862, the Royal Worcester Porcelain Company
- youth orchestra — an orchestra that is made up of young musicians