12-letter words containing o, s, t, e, p, r
- trouser clip — a clip that is worn around the bottom of a trouser leg to stop the material getting caught in the chain of a bicycle
- unit process — any of a number of standard operations, such as filtration or distillation, that are widely used in various chemical and process industries
- unprotesting — an expression or declaration of objection, disapproval, or dissent, often in opposition to something a person is powerless to prevent or avoid: a protest against increased taxation.
- unsupportive — giving support.
- urethroscope — an apparatus for observing the urethra.
- urethroscopy — observation of the urethra by a urethroscope.
- van der post — Sir Laurens (Jan). 1906–96, South African writer and traveller. His works include the travel books Venture to the Interior (1952), The Lost World of the Kalahari (1958), and Testament to the Bushmen (1984) and the novels The Hunter and the Whale (1967) and The Admiral's Baby (1996)
- vector space — an additive group in which addition is commutative and with which is associated a field of scalars, as the field of real numbers, such that the product of a scalar and an element of the group or a vector is defined, the product of two scalars times a vector is associative, one times a vector is the vector, and two distributive laws hold.
- velcro strip — a strip or roll of Velcro, able to be cut to the required length
- water pistol — a toy gun that shoots a stream of liquid.
- water sports — a sport played or practiced on or in water, as swimming, water polo, or surfing.
- water sprout — a nonflowering shoot arising from a branch or axil of a tree or shrub.
- west pointer — a graduate of the US Military Academy at West Point
- wool stapler — a dealer in wool.
- yachtsperson — A yachtsman or yachtswoman.