18-letter words containing w, a, i, n, s
- new forest disease — an infectious eye disease causing acute eye pain in cattle
- on a sticky wicket — in an awkward situation
- operating software — software used in the operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
- oriental scops owl — any of a group of small owls having ear tufts and a whistling call, especially Otus scops (Old World scops owl) and O. sunia (Oriental scops owl)
- packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
- plate-glass window — a window that has glass which has been formed by rolling
- prerelease showing — a showing of a film before it goes on general release
- presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
- resistance welding — welding utilizing pressure and heat that is generated in the pieces to be welded by resistance to an electric current.
- revolutionary wars — American Revolution.
- rhode island white — one of a dual-purpose American breed of chickens having white feathers and a rose comb.
- schwarz inequality — Also called Cauchy's inequality. the theorem that the inner product of two vectors is less than or equal to the product of the magnitudes of the vectors.
- self-tapping screw — a screw designed to tap its corresponding female thread as it is driven.
- sharp-shinned hawk — a North American hawk, Accipiter striatus, having extremely slender legs, a bluish-gray back, and a white, rusty-barred breast.
- skinny-rib sweater — a tight-fitting ribbed woollen jumper or pullover
- slow-motion replay — a showing again in slow motion of a sequence of action, esp of part of a sporting contest immediately after it happens
- solomon rabinowitz — Solomon, Aleichem, Sholom.
- spread one's wings — to make full use of one's abilities
- st. lawrence river — a river in SE Canada, flowing NE from Lake Ontario, forming part of the boundary between New York and Ontario, and emptying into the Gulf of St. Lawrence. 760 miles (1225 km) long.
- stand/wait in line — When people stand in line or wait in line, they stand one behind the other in a line, waiting their turn for something.
- submarine sandwich — a sandwich made with a long cylindrical bread roll
- swarm intelligence — the collective behaviour of a group of animals, esp social insects such as ants, bees, and termites, that are each following very basic rules
- swedish gymnastics — a system of passive and active exercising of muscles and joints
- sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
- talk between ships — TBS (def 1).
- the bird has flown — the person in question has fled or escaped
- to bear witness to — If a person or thing bears witness to something, they show or say that it exists or happened.
- ultrasonic welding — the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact
- wandering minstrel — travelling performer
- war risk insurance — life insurance for members of the armed forces.
- wardrobe assistant — a person who assists the wardrobe mistress in a theatre
- warrant of fitness — a six-monthly certificate required for motor vehicles certifying mechanical soundness
- waste minimization — a policy of generating as little waste as possible
- water stick insect — a slender sticklike flightless water bug, Ranatra linearis, that is predatory on small creatures such as water fleas
- watson-crick model — a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.
- weberian apparatus — (in certain fishes) a chain of small bones and ligaments connecting the inner ear with the air bladder.
- welland ship canal — a ship canal in S Canada, in Ontario, connecting Lakes Erie and Ontario: 8 locks. 25 miles (40 km) long.
- wernicke's aphasia — a type of aphasia caused by a lesion in Wernicke's area of the brain and characterized by grammatical but more or less meaningless speech and an apparent inability to comprehend speech.
- wesleyan methodist — a member of any of the churches founded on the evangelical principles of John Wesley.
- western alienation — a feeling of resentment by some inhabitants of western Canada against perceived favouritism by the national government towards the eastern provinces
- westinghouse brake — a railroad air brake operated by compressed air.
- wheelchair housing — housing designed or adapted for a chairbound person
- whispering gallery — a space or gallery beneath a dome or broad arch in which low sounds produced at any of certain points are clearly audible at certain other distant points.
- white man's burden — the alleged duty of white colonizers to care for nonwhite indigenous subjects in their colonial possessions.
- wild passionflower — the maypop, Passiflora incarnata.
- wildlife sanctuary — an area where wild animals and plants are protected
- wilson's phalarope — a phalarope, Phalaropus tricolor, that breeds in the prairie regions of North America and winters in Argentina and Chile.
- winged everlasting — a bushy composite plant, Ammobium alatum, of Australia, having winged branches, javelin-shaped leaves, and white flowers.
- without hesitation — immediately, willingly
- women at point sur — a narrative poem (1927) by Robinson Jeffers.