15-letter words containing a, d, i, r
- trading partner — a person, organization, or country with whom somebody customarily does business
- trading profits — profits made from the buying and selling of goods and services
- train attendant — a railway employee charged with managing the safe boarding of passengers, ticket inspection, etc
- training ground — an area where people prepare for sporting competitions, with activities primarily concentrating on skills and fitness
- trans-jordanian — of or relating to the former Trans-Jordan (now Jordan) or its inhabitants
- transfer window — the period during the year in which a football club can transfer players from other teams into their own
- transindividual — a single human being, as distinguished from a group.
- transvaal daisy — a composite plant, Gerbera jamesonii, native to southern Africa, having showy, many-rayed, variously colored flower heads.
- trapdoor spider — any of various, often large, spiders (esp. family Ctenizidae) that dig a burrow and cover the entrance with a hinged lid like a trapdoor
- treacle pudding — a sponge cake with syrup on top
- treasure island — (italics) a novel (1883) by R. L. Stevenson.
- trial and error — experimentation or investigation in which various methods or means are tried and faulty ones eliminated in order to find the correct solution or to achieve the desired result or effect.
- trichomonacidal — relating to a trichomonacide
- tricuspid valve — the valve, consisting of three triangular flaps of tissue between the right auricle and ventricle of the heart, that keeps blood from flowing back into the auricle.
- tristram shandy — a novel (1759–67) by Laurence Sterne.
- trithionic acid — a thionic acid, H2S3O6
- trojan asteroid — one of a number of asteroids that have the same mean motion and orbit as Jupiter, preceding or following the planet by a longitude of 60°
- truman doctrine — the policy of President Truman, as advocated in his address to Congress on March 12, 1947, to provide military and economic aid to Greece and Turkey and, by extension, to any country threatened by Communism or any totalitarian ideology.
- turnaround time — the total time taken between the submission of a program for execution and the return of the complete output to the customer
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultrademocratic — (in the US) characteristic of a staunch member or supporter of the Democratic Party and its agenda
- ultrafastidious — extremely fastidious
- un-considerable — rather large or great in size, distance, extent, etc.: It cost a considerable amount. We took a considerable length of time to decide.
- un-incarcerated — to imprison; confine.
- un-romanticized — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
- unaffordability — that can be afforded; believed to be within one's financial means: attractive new cars at affordable prices.
- uncharacterized — to mark or distinguish as a characteristic; be a characteristic of: Rich metaphors characterize his poetry.
- unconstrainedly — in an unconfined manner
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- under-education — to educate too little or poorly.
- undercapitalize — to provide an insufficient amount of capital for (a business enterprise).
- underestimation — to estimate at too low a value, rate, or the like.
- underpopulation — having a population lower than is normal or desirable.
- understandingly — mental process of a person who comprehends; comprehension; personal interpretation: My understanding of the word does not agree with yours.
- unearned income — income received from property, as interest, dividends, or the like.
- unextraordinary — beyond what is usual, ordinary, regular, or established: extraordinary costs.
- unindoctrinated — to instruct in a doctrine, principle, ideology, etc., especially to imbue with a specific partisan or biased belief or point of view.
- universal donor — a person with blood of group O.
- unpractisedness — the quality or state of being unpractised
- unrehabilitated — to restore to a condition of good health, ability to work, or the like.
- unskilled labor — work that requires practically no training or experience for its adequate or competent performance.
- untraditionally — in an untraditional fashion; not traditionally
- untransmigrated — not transmigrated; not transferred or caused to be transferred
- upper east side — a section of the East Side of New York City, conventionally between 57th Street and 96th Street, known for its affluence.
- upward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
- upwardly mobile — See under vertical mobility (def 1).
- uralian emerald — demantoid: not a true emerald.
- uranium dioxide — a black, crystalline compound, UO 2 , insoluble in water, used in nuclear fuel rods, in ceramics, and pigments.
- urinary bladder — a distensible, muscular and membranous sac, in which the urine is retained until it is discharged from the body.
- uropygial gland — a gland opening on the back at the base of the tail in most birds that secretes an oily fluid used by the bird in preening its feathers.