13-letter words containing o, p, r, t, u
- uncooperative — working or acting together willingly for a common purpose or benefit.
- under protest — having voiced objections; unwillingly
- unexplanatory — serving to explain: an explanatory footnote.
- unicorn plant — a North American plant, Proboscidea (Martynia) louisianica, having creamy-white to red flowers blotched with purple, and a woody capsule with a long, curved beak.
- unpretentious — not pretentious; modest; without ostentatious display; plain: his unpretentious demeanor; an unpretentious summer resort.
- unproblematic — not problematic, not causing difficulties or confusion; uncomplicated
- unprotectable — to defend or guard from attack, invasion, loss, annoyance, insult, etc.; cover or shield from injury or danger.
- unprovocative — tending or serving to provoke; inciting, stimulating, irritating, or vexing.
- unsupportable — capable of being supported; endurable; maintainable.
- unsupportedly — in an unsupported fashion, without support
- unupholstered — to provide (chairs, sofas, etc.) with coverings, cushions, stuffing, springs, etc.
- up to scratch — to break, mar, or mark the surface of by rubbing, scraping, or tearing with something sharp or rough: to scratch one's hand on a nail.
- upright piano — a piano with an upright rectangular body and with its strings running vertically. Compare spinet (def 1).
- uprighteously — in an upright or moral manner
- uranite group — the mineralogical group including uranites and related minerals.
- vapourer moth — a tussock moth, Orgyia antiqua, of hedgerows and trees, the female of which is wingless and lays her eggs on her former cocoon
- volute spring — a coil spring, conical in shape, extending in the direction of the axis of the coil.
- waste product — material discarded as useless in the process of producing something.
- water opossum — yapok.
- yol computers — (company) A company in London, UK that sells computer and network systems, established in 2001.
- zinjanthropus — the genus to which Australopithecus boisei was formerly assigned.