13-letter words containing r, a, d, i, o, t
- untraditional — of or relating to tradition.
- valedictorian — a student, usually the one ranking highest academically in a school graduating class, who delivers the valedictory at the commencement exercises.
- venetian door — a doorway having a form similar to that of a Palladian window.
- victoria land — a region in Antarctica, bordering on the Ross Sea, mainly in Ross Dependency.
- victory medal — a round bronze medal awarded to all those who served in the armed forces of the U.S. during World War I.
- vindicatorily — in a vindicatory manner
- water soldier — an aquatic plant, Stratiotes aloides, of Europe and NW Asia, having rosettes of large leaves and large three-petalled white flowers: family Hydrocharitaceae
- waterboarding — a harsh interrogation technique in which water is poured onto the face and head of the immobilized victim so as to induce a fear of drowning.
- waterflooding — (in oil, gas, or petroleum production) the practice of injecting water to maintain pressure in a reservoir and to drive the oil, etc towards the production wells
- wild bergamot — a plant, Monarda fistulosa, of the mint family, native to eastern North America, having a rounded cluster of lilac-colored or purple flowers, growing in dry places.
- word painting — an effective verbal description.
- wordsworthian — William, 1770–1850, English poet: poet laureate 1843–50.
- yekaterinodar — a former name of Krasnodar.
- zero altitude — the height at which the atmospheric pressure is 610.5Pa