12-letter words containing o, s, k
- keystone kop — Usually, Keystone Kops. (in early silent movies) a team of comic policemen noted for their slapstick routines.
- khornerstone — A multipurpose benchmark from Workstation Labs used in various periodicals. The source is not free. Results are published in "UNIX Review".
- kick oneself — regret sth
- kidney stone — an abnormal stone, or concretion, composed primarily of oxalates and phosphates, found in the kidney.
- kill oneself — to overexert oneself
- kilocalories — Plural form of kilocalorie.
- kindred soul — like-minded person
- kinesophobia — Fear of movement.
- kinetoplasts — Plural form of kinetoplast.
- king's color — a white ceremonial ensign with a royal cipher, flown on special occasions by the British Royal Navy.
- king's crown — a tropical American shrub, Justicia carnea, of the acanthus family, bearing clusters of tubular reddish flowers.
- king's scout — (in Great Britain) a boy scout who has achieved the highest level of scouting: similar to the U.S. eagle scout.
- king-of-arms — a title of certain of the principal heralds of England and certain other kingdoms empowered by their sovereigns to grant armorial bearings.
- kirk session — the lowest court of the Presbyterian Church
- kiss goodbye — to kiss in taking leave
- kiss of life — medicine
- kitchen soap — heavy-duty soap intended for use in the kitchen
- knowableness — the quality of being knowable
- knucklebones — (in humans) any of the bones forming a knuckle of a finger.
- korea strait — a strait between Korea and Japan, connecting the Sea of Japan and the East China Sea. 120 miles (195 km) long.
- korsakoffian — relating to or suffering from Korsakoff's psychosis
- kosher-style — (of a cuisine, restaurant, etc.) featuring traditional Jewish dishes, but not adhering to the dietary laws: kosher-style cooking.
- kourotrophos — (archaeology) a class of Mycenaean terracotta figurines depicting women carrying children.
- koussevitzky — Serge [sairzh] /sɛərʒ/ (Show IPA), (Sergei Alexandrovich Koussevitsky) 1874–1951, Russian orchestra conductor in the U.S.
- lady's-smock — a N temperate plant, Cardamine pratensis, with white or rose-pink flowers: family Brassicaceae (crucifers)
- lake jackson — a town in S Texas.
- lake station — a town in NW Indiana.
- lake torrens — a shallow salt lake in E central South Australia, about 8 m (25 ft) below sea level. Area: 5776 sq km (2230 sq miles)
- lark sparrow — a North American sparrow, Chondestes grammacus, having a distinctive brown-and-white facial pattern.
- leon trotsky — Leon (Lev or Leib, Davidovich Bronstein) 1879–1940, Russian revolutionary and writer: minister of war 1918–25.
- lesser-known — less widely known; less famous
- letter stock — unregistered stock sold privately by a company so as not to have a negative effect on the price of its publicly traded stock.
- leukocytosis — an increase in the number of white blood cells in the blood.
- leukopedesis — an outward flow of white blood cells through a blood-vessel wall.
- leukopoiesis — the formation and development of white blood cells.
- leukotrienes — Plural form of leukotriene.
- likely story — dubious account
- loansharking — the practice of lending money at excessive rates of interest.
- locksmithing — The science and art of making and defeating locks.
- look askance — glance sidelong or with suspicion
- look daggers — to turn one's eyes toward something or in some direction in order to see: He looked toward the western horizon and saw the returning planes.
- lookout post — a place from which a guard or sentry can keep watch
- loosely-knit — associated or linked in a loose way
- loudspeakers — Plural form of loudspeaker, especially a pair for a left and right channel.
- lover's knot — love knot.
- lovesickness — Quality or property of being lovesick.
- mackintoshes — Plural form of mackintosh.
- magnitogorsk — a city in the W Russian Federation in Asia, on the Ural River, near the boundary between Europe and Asia.
- makarios iii — (Michael Christodoulos Mouskos) 1913–77, Cypriot statesman and Greek Orthodox prelate: archbishop and patriarch of Cyprus 1950–77; president 1960–77 (in exile 1974).
- make a noise — to talk a great deal or complain