20-letter words containing o, a
- japanese pagoda tree — pagoda tree.
- jasper national park — a national park in the Canadian Rockies in W Alberta, in SW Canada.
- java development kit — (language, compiler) (JDK) A free Sun Microsystems product which provides the environment required for programming in Java. The JDK is available for a variety of platforms, but most notably Sun Solaris and Microsoft Windows.
- jerez de la frontera — a town in SW Spain: famous for the making of sherry. Pop: 191 002 (2003 est)
- jerk someone's chain — to tease, mislead, or harass someone
- job control language — a language used to construct statements that identify a particular job to be run and specify the job's requirements to the operating system under which it will run. Abbreviation: JCL.
- john o'groat's house — the northern tip of Scotland, near Duncansby Head, NE Caithness, traditionally thought of as the northernmost point of Britain: from Land's End to John o'Groat's House.
- joint life insurance — life insurance covering two or more persons, the benefits of which are paid after the first person dies.
- jordan curve theorem — the theorem that the complement of a simple closed curve can be expressed as the union of two disjoint sets, each having as boundary the given curve.
- joseph of arimathaea — a member of the Sanhedrin who placed the body of Jesus in the tomb. Matt. 27:57–60; Mark 15:43.
- judicial proceedings — any action involving or carried out by a court of law
- junior featherweight — a boxer weighing up to 122 pounds (54.9 kg), between bantamweight and featherweight.
- juno and the paycock — a play (1924) by Sean O'Casey.
- justice of the peace — a local public officer, usually having jurisdiction to try and determine minor civil and criminal cases and to hold preliminary examinations of persons accused of more serious crimes, and having authority to administer oaths, solemnize marriages, etc.
- justifiable homicide — murder committed under extenuating circumstances
- kármán vortex street — a regular stream of vortices shed from a body placed in a fluid stream: investigated by Kármán who advanced a formula for the frequency of the shed vortices in terms of the stream velocity and the dimensions of the body
- keep a tight rein on — to control carefully; limit
- keratoconjunctivitis — inflammation of the cornea and conjunctiva.
- keyboard video mouse — (hardware) (KVM) Used to describe a "KVM switch" that allows one keyboard, one video display and one mouse to be switched between two or more computers.
- kick over the traces — either of the two straps, ropes, or chains by which a carriage, wagon, or the like is drawn by a harnessed horse or other draft animal.
- king's-pawn openings — a class of chess openings in which the pawn in front of the king is advanced two squares on the first move.
- kingston upon thames — a borough of Greater London, England.
- knight of the garter — a knight who belongs to the Order of the Garter
- knights hospitallers — a military religious order founded about the time of the first crusade (1096–99) among European crusaders. It took its name from a hospital and hostel in Jerusalem
- knock the tar out of — any of various dark-colored viscid products obtained by the destructive distillation of certain organic substances, as coal or wood.
- knock-down, drag-out — characterized by great violence, harshness, animosity, etc.
- know all the answers — be opinionated
- knowledge management — data technology
- kruger national park — a wildlife sanctuary in NE South Africa: the world's largest game reserve. Area: over 21 700 sq km (8400 sq miles)
- laboratory assistant — laboratory technician, lab assistant
- laboratory diagnosis — scientific analysis of a disease
- laboratory equipment — apparatus for scientific research and experiments
- labour-saving device — a machine, gadget, etc, that reduces (human) effort, hard work or labour
- lacto-ovo-vegetarian — Also called lactovarian [lak-tuh-vair-ee-uh n] /ˌlæk təˈvɛər i ən/ (Show IPA), ovolactarian, ovo-lacto-vegetarian. a vegetarian whose diet includes dairy products and eggs.
- lampbrush chromosome — a chromosome with looped projections resembling a brush
- land-office business — a lively, booming, expanding, or very profitable business.
- language development — the development verbal communication skills in children
- languedoc-roussillon — a region of S France, on the Gulf of Lions: consists of the departments of Lozère, Gard, Hérault, Aude, and Pyrénées-Orientales; mainly mountainous with a coastal plain
- last of the mohicans — a historical novel (1826) by James Fenimore Cooper.
- laugh one's head off — Phrases such as laugh your head off and scream your head off can be used to emphasize that someone is laughing or screaming a lot or very loudly.
- laurentian mountains — a range of low mountains in E Canada, in Quebec between the St Lawrence River and Hudson Bay. Highest point: 1191 m (3905 ft)
- lavaliere microphone — a small microphone that hangs around the neck of a performer or speaker.
- law of contradiction — the law that a proposition cannot be both true and false or that a thing cannot both have and not have a given property.
- law of large numbers — the theorem in probability theory that the number of successes increases as the number of experiments increases and approximates the probability times the number of experiments for a large number of experiments.
- law of superposition — Geology. a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.
- law-and-order issues — issues concerning law and social conventions
- lead someone a dance — to cause someone continued worry and exasperation; play up
- lead with one's chin — to act so imprudently as to invite disaster
- least-squares method — a method of estimating values from a set of observations by minimizing the sum of the squares of the differences between the observations and the values to be found.
- legal representation — representation by a lawyer