21-letter words containing u, n, p, o, l
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- residual unemployment — the unemployment that remains in periods of full employment, as a result of those mentally, physically, or emotionally unfit to work
- return the compliment — repay sb's kindness with a kind act
- roll up one's sleeves — to prepare oneself for work, a fight, etc
- roll with the punches — a thrusting blow, especially with the fist.
- round-necked pullover — a sweater with a plain round neckline
- sampling distribution — the distribution of a statistic based on all possible random samples that can be drawn from a given population.
- scalar multiplication — an operation used in the definition of a vector space in which the product of a scalar and a vector is a vector, the operation is distributive over the addition of both scalars and vectors, and is associative with multiplication of scalars
- school superintendent — an official whose job is to oversee school administration within a district
- sequoia national park — a national park in central California: giant sequoia trees. 604 sq. mi. (1565 sq. km).
- simple actor language — (language) (SAL) A minimal actor language, used for teaching in:
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- sinusoidal projection — an equal-area projection in which parallels are straight lines spaced at regular intervals, the central meridian is a straight line one-half the length of the equator, and the other meridians are curves symmetrical to the central meridian.
- social inquiry report — (in Britain) a report on a person and his or her circumstances, which may be required by a court before sentencing and is made by a probation officer or a social worker from a local authority social services department
- spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
- stop loss reinsurance — Stop loss reinsurance is a form of reinsurance under which the reinsurer pays the cedant's losses in any year over a particular percentage of the earned premium.
- subjective complement — subject complement.
- subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
- supergranulation cell — one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
- supply-side economics — a school of economic thought that emphasizes the importance to a strong economy of policies that remove impediments to supply
- the slough of despond — a state of extreme despondency, depression or degradation
- to pull someone's leg — If you are pulling someone's leg, you are teasing them by telling them something shocking or worrying as a joke.
- ulster unionist party — a Northern Irish political party advocating the maintenance of union with the UK
- up close and personal — face to face, intimately
- up hill and down dale — strenuously and persistently