15-letter words containing o, r, e, s, t, i
- trout fisherman — a fisherman who catches trout
- trust territory — a territory under the administrative control of a country designated by the United Nations.
- trustworthiness — deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.
- turbinate bones — the thin scroll-shaped bones situated on the walls of the nasal passages
- turn inside out — If you say that something has been turned inside out, you mean that it is the opposite of what you expect or think it should be.
- turquoise green — a light bluish green.
- tutorial system — a system of education, especially in some colleges, in which instruction is given personally by tutors, who also act as general advisers of a small group of students in their charge.
- twist one's arm — to combine, as two or more strands or threads, by winding together; intertwine.
- 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.
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultra-religious — of, relating to, or concerned with religion: a religious holiday.
- ultramicroscope — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- unconstrainable — unable to be confined
- unconstrainedly — in an unconfined manner
- uncontroversial — of, relating to, or characteristic of controversy, or prolonged public dispute, debate, or contention; polemical: a controversial book.
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- underestimation — to estimate at too low a value, rate, or the like.
- universal joint — piece that couples two rotating shafts
- universal motor — a series-wound motor, of one-half horsepower or less, using alternating or direct current.
- unobtrusiveness — not obtrusive; inconspicuous, unassertive, or reticent.
- unpretentiously — without pretension
- unprotestantize — to make something (e.g. a church, country, etc) a religion other than Protestant
- 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.
- unsportsmanlike — a man who engages in sports, especially in some open-air sport, as hunting, fishing, racing, etc.
- vacation course — a course of study undertaken during a vacation, usually combined with other activities
- vector analysis — the branch of calculus that deals with vectors and processes involving vectors.
- 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.
- vers de societe — humorous light verse dealing with fashions and foibles of the time.
- vespertilionine — of or relating to the bats of the subfamily Vespertilioninae, common in temperate regions and including most familiar species.
- virtual storage — a system whereby addressable memory is extended beyond main storage through the use of secondary storage managed by system software in such a way that programs can treat all of the designated storage as addressable main storage.
- virtuous circle — a beneficial cycle of events or incidents, each having a positive effect on the next.
- visible exports — goods sold to a foreign country or countries
- visible imports — products that a company or country buys from other countries
- 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
- vitreous silica — silica glass
- 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
- voyeuristically — of, relating to, or characteristic of a voyeur or of voyeurism.
- weather station — an installation equipped and used for meteorological observation.
- 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 petrel — a small petrel, Oceanites oceanicus, that breeds in the Southern Hemisphere but ranges into the North Atlantic and Pacific oceans.
- winter holidays — a period of rest from work or studies taken in winter
- winter solstice — the solstice on or about December 21st that marks the beginning of winter in the Northern Hemisphere.
- with respect to — as regards
- without reserve — without reservations; fully; wholeheartedly
- wolverine state — Michigan (used as a nickname).