12-letter words containing o, a, k, r
- petrozavodsk — a city in NW Russia, capital of the Karelian Autonomous Republic, on Lake Onega: developed around ironworks established by Peter the Great in 1703; university (1940). Pop: 265 000 (2005 est)
- phone phreak — a person who uses computers or other electronic devices to place long-distance telephone calls without paying toll charges.
- policymakers — a person responsible for making policy, especially in government.
- poodle-faker — a young man or newly commissioned officer who makes a point of socializing with women; ladies' man
- pork sausage — a sausage made with pork
- port jackson — an inlet of the Pacific in SE Australia: the harbor of Sydney.
- postcardlike — (of a scene) resembling a postcard
- powder flask — a small flask of gunpowder formerly carried by soldiers and hunters.
- powerwalking — a form of exercise that involves rapid walking with arms bent and swinging naturally.
- private joke — a joke that is understood only by a certain social group
- product mark — a trademark used on only one product.
- quack doctor — an unqualified person who claims medical knowledge or other skills
- quartz clock — an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch)
- rappahannock — a river flowing SE from N Virginia into the Chesapeake Bay: Civil War battle 1863. 185 miles (300 km) long.
- rat kangaroo — any of several rabbit-sized, ratlike Australian kangaroos of the subfamily Potoroinae.
- rat-kangaroo — any of several rabbit-sized, ratlike Australian kangaroos of the subfamily Potoroinae.
- reading book — a book for people who are learning to read, to help them become accustomed to looking at and understanding written words
- ready-cooked — (of food or food products) cooked before it is sold
- reaping hook — a curved cutting tool with a sharp edge, used in the cutting or harvesting of crops
- red kangaroo — a large Australian kangaroo, Macropus rufus, the male of which has a reddish coat
- reform flask — an English salt-glazed stoneware flask of the early 19th century formed as an effigy of one of the figures connected with the Reform Bill of 1832.
- ribbon snake — either of two long-tailed garter snakes, Thamnophis proximus or T. sauritus, of eastern and central North America, having a brownish body and yellow or orange stripes.
- richard korf — (person) A Professor of computer science at the University of California, Los Angeles. Richard Korf received his B.S. from MIT in 1977, and his M.S. and Ph.D. in computer science from Carnegie-Mellon University in 1980 and 1983. From 1983 to 1985 he served as Herbert M. Singer Assistant Professor of Computer Science at Columbia University. Dr. Korf studies problem-solving, heuristic search and planning in artificial intelligence. He wrote "Learning to Solve Problems by Searching for Macro-Operators" (Pitman, 1985). He serves on the editorial boards of Artificial Intelligence, and the Journal of Applied Intelligence. Dr. Korf is the recipient of several awards and is a Fellow of the American Association for Artificial Intelligence.
- rock and rye — a bottled drink made with rye whiskey, rock candy, and fruit.
- rock carving — the practice of carving on rock
- rock crystal — transparent quartz, especially when colorless.
- rock glacier — a mass of rock resembling a valley glacier that moves or is moved down a slope by its own weight or by the action of frost and interstitial ice.
- rock jasmine — any of several alpine plants belonging to the genus Androsace, of the primrose family, having tufted leaves often in basal rosettes, and umbels of pink, red, purple, or white flowers.
- rock wallaby — any wallaby of the genus Petrogale, having a banded or striped coat, slender body, and long legs and feet, inhabiting caves and rocky areas in Australia.
- rocker panel — body paneling below the passenger compartment of a vehicle.
- rocket plane — aircraft that launches rockets
- rocket range — a firing range for rockets
- rocket salad — rocket2 (def 2).
- rocket-salad — any of various plants belonging to the genus Hesperis, of the mustard family, and related genera. Compare dame's rocket.
- rockumentary — a documentary about rock music.
- rohnert park — a city in W California.
- roller-skate — to glide about by means of roller skates.
- roman strike — a striking mechanism of c1700, giving the equivalent in tones of Roman numerals, a bell of one pitch striking once for each number I, a bell of another pitch striking once for V, twice for X.
- roselle park — a borough in NE New Jersey.
- sale of work — a sale of goods and handicrafts made by the members of a club, church congregation, etc, to raise money
- salmon brick — a soft, imperfectly fired brick having a reddish-orange color.
- saloonkeeper — a person who operates a saloon (sense 3)
- sankt moritz — German name of St. Moritz.
- school shark — an Australian shark resembling the tope, Notogaleus australis
- scrapbooking — hobby: collaging
- sea milkwort — a maritime plant, Glaux maritima, having small, pinkish-white flowers.
- section mark — section (def 16).
- sewage works — a place where chemicals are used to clean sewage so that it can then be allowed to go into rivers, etc or used to make manure
- shamrock-pea — a trailing plant, Parochetus communis, of the legume family, native to Asia and east Africa, having shamrocklike leaves with a brown crescent at the base and pea-shaped, pink and blue flowers.
- shark patrol — a watch for sharks kept by an aircraft flying over beaches used by swimmers