9-letter words containing r, a, t, s, k
- keratosis — any skin disease characterized by a horny growth, as a wart.
- keystream — (cryptography) A stream of random or pseudorandom characters that are combined with the plaintext to produce a ciphertext.
- kickstart — a starter, as of a motorcycle, that operates by a downward kick on a pedal.
- knotgrass — A common Eurasian plant of the dock family, with jointed creeping stems and small pink flowers. It is a serious weed in some areas.
- kronstadt — a naval base in the NW Russian Federation in Europe, on an island in the Gulf of Finland: fortress founded 1710.
- kshatriya — a member of the Hindu royal and warrior class above the Vaisyas and below the Brahmans.
- kurdistan — a mountain and plateau region in SE Turkey, NW Iran, and N Iraq: inhabited largely by Kurds. 74,000 sq. mi. (191,660 sq. km).
- lakehurst — a borough in E New Jersey: naval air station; dirigible hangar.
- lankester — Sir Edwin Ray, 1847–1929, English zoologist and writer.
- lapstrake — clinker-built (def 2).
- lapstreak — Alternative form of lapstrake.
- marketers — Plural form of marketer.
- marketise — Alternative spelling of marketize.
- mathworks — The MathWorks, Inc.
- maxiskirt — a long skirt or skirt part, as of a coat or dress, ending below the middle of the calf but above the ankle.
- meatworks — (Australia, New Zealand) A slaughterhouse or meat processing plant.
- mintmarks — Plural form of mintmark.
- nonskater — a person who does not skate
- outbreaks — Plural form of outbreak.
- pankhurst — Christabel Harriette, 1880–1958, English suffragist leader (daughter of Emmeline Pankhurst).
- pasternak — Boris Leonidovich [bawr-is,, bohr-,, bor-;; Russian buh-ryees lyi-uh-nyee-duh-vyich] /ˈbɔr ɪs,, ˈboʊr-,, ˈbɒr-;; Russian bʌˈryis lyɪ ʌˈnyi də vyɪtʃ/ (Show IPA), 1890–1960, Russian poet, novelist, and translator: declined 1958 Nobel prize.
- periaktos — an ancient device used for changing theatre scenery, usually consisting of a revolving triangular prism with different scenes painted on each face; the device was heavily used in the Renaissance
- prankster — a mischievous or malicious person who plays tricks, practical jokes, etc., at the expense of another.
- rainstick — a musical instrument consisting of a tube filled with sand or pebbles, which is inverted to produce a sound
- rankshift — (in systemic linguistics) to use a unit as a constituent of another unit of the same or lower rank on the rank scale, as in using the phrase next door within the phrase the boy next door or the clause that you met yesterday within the phrase the girl that you met yesterday.
- rat snake — any of several New and Old World colubrid snakes, of the genus Elaphe, that feed chiefly on small mammals and birds.
- redstreak — an English variety of apple which is streaked red and yellow and is used in cider making
- rib steak — club steak.
- rickstand — a platform on which to put or make a rick or haystack
- risktaker — a person or corporation inclined to take risks: The management trainees were exhorted to become risktakers.
- rock salt — common salt occurring in extensive, irregular beds in rocklike masses.
- rock star — a rock-'n'-roll star or celebrity.
- rock-salt — common salt occurring in extensive, irregular beds in rocklike masses.
- rockshaft — an oscillating shaft.
- rootstalk — a rhizome.
- salt pork — pork cured with salt, especially the fat pork taken from the back, sides, and belly.
- saltworks — (often used with a plural verb) a building or plant where salt is made.
- shark net — a net for catching sharks
- shortcake — a cake made with a relatively large amount of butter or other shortening.
- shotmaker — a sports player delivering good shots
- sidetrack — any railroad track, other than a siding, auxiliary to the main track.
- skatepark — A skatepark is an area that is designed for people to practise skateboarding.
- sky train — elevated railway system
- snakeroot — any of various plants whose roots have been regarded as a remedy for snakebites, as the herb Aristolochia serpentaria (Virginia snakeroot) having a medicinal rhizome and rootlets, and the white-flowered Polygala senega (Seneca snakeroot) having a medicinal root.
- southwark — a borough of Greater London, England, S of the Thames.
- stackroom — an area in a library where books are not on open shelves
- stairlike — resembling stairs
- stairwork — unseen plotting
- starquake — a rapid change in the mass distribution or shape of a pulsar, resulting in a fluctuation of the pulsar's pulse rate or radiation intensity.
- staymaker — a corset maker, a maker of stays