20-letter words containing o, s, t, w, a

queensland arrowroot — a South American and West Indian herb, Canna edulis, having large sheathing leaves, red flowers, and edible rhizomes.
saint andrew's cross — a low evergreen shrub, Ascyrum hypericoides, native to temperate and subtropical America, having flowers in clusters of three: often cultivated.
school without walls — a nontraditional educational program that uses community facilities as learning resources.
second law of motion — any of three laws of classical mechanics, either the law that a body remains at rest or in motion with a constant velocity unless an external force acts on the body (first law of motion) the law that the sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces (second law of motion) or the law that for every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the same line of action as the original force (third law of motion or law of action and reaction)
senior aircraftwoman — a rank in the Royal Air Force comparable to that of a private in the army, though not the lowest rank in the Royal Air Force
separation allowance — an allowance paid to a member of the military when they are forced to be apart from their family due to their military duties
separation of powers — the principle or system of vesting in separate branches the executive, legislative, and judicial powers of a government.
settle accounts with — to pay or receive a balance due
sharp-tailed sparrow — a sparrow, Ammospiza caudacuta, inhabiting salt marshes in North America, having narrow, sharply pointed tail feathers.
slow-scan television — a technique or system in which an image is scanned electronically more slowly than is normally done in order to produce images, especially of still pictures, that can be transmitted economically, as over a telephone line, and displayed on a television screen.
snow-on-the-mountain — a North American euphorbiaceous plant, Euphorbia marginata, having white-edged leaves and showy white bracts surrounding small flowers
snowflake generation — the generation of people who became adults in the 2010s, viewed as being less resilient and more prone to taking offence than previous generations
software engineering — the process of writing computer programs
software methodology — (programming) The study of how to navigate through each phase of the software process model (determining data, control, or uses hierarchies, partitioning functions, and allocating requirements) and how to represent phase products (structure charts, stimulus-response threads, and state transition diagrams).
sound-and-light show — a nighttime spectacle or performance, at which a building, historic site, etc., is illuminated and the historic significance is imparted to spectators by means of narration, sound effects, and music.
stained glass window — a window made of coloured glass, often showing religious pictures and usually seen in churches
state highway patrol — a state's road traffic police
stefan-boltzmann law — the law stating that the total energy radiated from a blackbody is proportional to the fourth power of its absolute temperature.
storage area network — (storage) (SAN) A high-speed subnetwork of shared storage devices. A storage device is a machine that contains nothing but a disk or disks for storing data. A SAN's architecture works in a way that makes all storage devices available to all servers on a LAN or WAN. As more storage devices are added to a SAN, they too will be accessible from any server in the larger network. The server merely acts as a pathway between the end user and the stored data. Because stored data does not reside directly on any of a network's servers, server power is used for business applications, and network capacity is released to the end user.
straight as an arrow — direct, unwavering
sweat one's guts out — to work very hard
switchboard operator — a person who operates an installation in a telephone exchange, office, hotel, etc, at which the interconnection of telephone lines is manually controlled
that makes two of us — the same applies to me
the last word in sth — If you say that something is the last word in luxury, comfort, or some other quality, you are emphasizing that it has a great deal of this quality.
the roaring twenties — a phrase used to describe the decade of the 1920s (esp in America), so called due to the social, artistic, and cultural dynamism of the period
the way of the cross — a series of images in a church or along a road to a church etc depicting the last hours of Christ
the whole nine yards — everything that is required; the whole thing
third-party software — software created by programmers or publishers independent of the manufacturer of the hardware for which it is intended.
throw up one's hands — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
to be a one-man show — to be reliant on one person alone
to be a warning shot — to be a warning
to reach new heights — to become higher than ever before
to spread your wings — If you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience.
to stick in the craw — to be unacceptable or displeasing to someone
to waste your breath — If someone says you are wasting your breath, they mean that the person you are talking to will not take any notice and so there is no point saying anything to them.
to wear the trousers — If one person in a couple, especially the woman, wears the pants, or in British English wears the trousers, they are the one who makes all the decisions.
to weather the storm — If someone weathers the storm, they succeed in reaching the end of a very difficult period without much harm or damage.
to work your way swh — If you work your way somewhere, you move or progress there slowly, and with a lot of effort or work.
townsend's solitaire — a brownish, slender-billed songbird, Myadestes townsendi, of western North America.
twisted stomach worm — stomach worm.
university of hawaii — (body, education) A University spread over 10 campuses on 4 islands throughout the state. See also Aloha, Aloha Net.
warehouse facilities — places for storing goods
watch someone's back — the rear part of the human body, extending from the neck to the lower end of the spine.
watering of the eyes — the formation of tears in the eyes
webster's dictionary — Informal. a dictionary of the English language, especially American English, such as Dictionary.com.
western civilization — European culture, thought
western mountain ash — a mountain ash, Sorbus sitchensis, of western North America.
western roman empire — the westernmost of the two empires created by the division of the later Roman Empire, esp after its final severance from the Eastern Roman Empire (395 ad)
weston standard cell — a primary cell used as a standard of emf, producing 1.018636 volts: consists of a mercury anode and a cadmium amalgam cathode in an electrolyte of saturated cadmium sulphate
white bush (scallop) — a variety of summer squash having a saucer-shaped white fruit, scalloped around the edges

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