21-letter words containing w, a, l, o

psychological warfare — the use of propaganda, threats, and other psychological techniques to mislead, intimidate, demoralize, or otherwise influence the thinking or behavior of an opponent.
redwood national park — a national park in N California: redwood forest with some of the world's tallest trees. 172 sq. mi. (445 sq. km).
safe in the knowledge — If you do something safe in the knowledge that something else is the case, you do the first thing confidently because you are sure of the second thing.
salam-weinberg theory — the electroweak theory.
scarlet monkey flower — any of various plants belonging to the genus Mimulus, of the figwort family, as M. cardinalis (scarlet monkey flower) having spotted flowers that resemble a face.
sovereign wealth fund — an investment fund created using the financial assets of a national government
spicebush swallowtail — a swallowtail butterfly, Papilio troilus, having a dark body with yellow spots on the forewings and greenish hind wings.
subsistence allowance — money given in advance to a new soldier, employee, etc., to buy food, clothing, and pay for other necessities while awaiting a first pay.
take one's (own) life — to commit suicide
the letter of the law — If you say that someone keeps to the letter of the law , you mean that they act according to what is actually written in the law, rather than according to the general principles of it, especially when you disapprove of this.
the lower vertebrates — relatively simple and primitive vertebrates
the women's land army — a unit of women recruited to do agricultural work in the United Kingdom during World War I and World War II
the yellow brick road — the road to success or happiness (in the film the Wizard of Oz the yellow brick road leads to Oz)
thermal power station — a power station in which heat is converted into electricity
threshold wage policy — a policy whereby wages are increased in accordance with inflation
throw sb a curve ball — If someone throws you a curve or throws you a curve ball, they surprise you by doing something that you do not expect.
to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
to let your hair down — If you let your hair down, you relax completely and enjoy yourself.
to look the other way — If you say that someone looks the other way, you are critical of them because they pay no attention to something unpleasant that is happening, when they should be dealing with it properly.
to sow your wild oats — If a young person sows their wild oats, they behave in a rather uncontrolled way, especially by having a lot of sexual relationships.
to take the long view — If you take the long view, you consider what is likely to happen in the future over a long period, rather than thinking only about things that are going to happen soon.
traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
twist the lion's tail — a large, usually tawny-yellow cat, Panthera leo, native to Africa and southern Asia, having a tufted tail and, in the male, a large mane.
up hill and down dale — strenuously and persistently
venus's flower basket — a glass sponge of the genus Euplectella, inhabiting deep waters off the Philippines and Japan, having a cylindrical skeleton formed of an intricate latticework of siliceous spicules.
warm silence software — A small company run by(?) Robin Watts, producing software for the Acorn Archimedes.
weak head normal form — (reduction, theory) (WHNF) A lambda expression is in weak head normal form (WHNF) if it is a head normal form (HNF) or any lambda abstraction. I.e. the top level is not a redex. The term was coined by Simon Peyton Jones to make explicit the difference between head normal form (HNF) and what graph reduction systems produce in practice. A lambda abstraction with a reducible body, e.g. \ x . ((\ y . y+x) 2) is in WHNF but not HNF. To reduce this expression to HNF would require reduction of the lambda body: (\ y . y+x) 2 --> 2+x Reduction to WHNF avoids the name capture problem with its need for alpha conversion of an inner lambda abstraction and so is preferred in practical graph reduction systems. The same principle is often used in strict languages such as Scheme to provide call-by-name evaluation by wrapping an expression in a lambda abstraction with no arguments: D = delay E = \ () . E The value of the expression is obtained by applying it to the empty argument list:
weinberg-salam theory — electroweak theory.
west lothian question — the apparent inconsistency that members of parliament who represent Scottish constituencies are eligible to vote at Westminster on matters that relate only to England, whereas members of parliament from English constituencies are not eligible to vote on Scottish matters
what the future holds — If you wonder what the future holds, you wonder what will happen in the future.
wholesale price index — an indicator of price changes in the wholesale market
wildlife photographer — someone that specializes in taking photographs of wild animals, especially in their natural habitats, and plants
william of malmesbury — William of, William of Malmesbury.
william the conqueror — ("the Conqueror") 1027–87, duke of Normandy 1035–87; king of England 1066–87 (son of Robert I, duke of Normandy).
without qualification — If something is stated or accepted without qualification, it is stated or accepted as it is, without the need for any changes.
yellow lady's-slipper — a showy orchid, Cypripedium calceolus, of eastern North America, having purple-tinged yellow flowers with an inflated lip petal.
yellow-rumped warbler — a common North American wood warbler, Dendroica coronata, having yellow spots on the rump, crown, and sides, including a white-throated eastern subspecies (myrtle warbler) and a yellow-throated western subspecies (Audubon's warbler)
yellow-throated vireo — an olive-green vireo, Vireo flavifrons, of eastern North America, having a bright yellow throat and breast.

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