6-letter words containing a, r, t, o
- nostra — Plural form of nostrum.
- notary — notary public.
- o star — a very hot, massive, blue star of spectral type O, having a surface temperature between 30,000 and 50,000 K and an absorption spectrum with few lines, though the Balmer series of hydrogen lines is present and lines of ionized helium are detectable.
- oaters — Plural form of oater.
- omerta — secrecy sworn to by oath; code of silence.
- op art — a style of abstract art in which lines, forms, and space are organized in such a way as to provide optical illusions of an ambiguous nature, as alternately advancing and receding squares on a flat surface.
- optran — Specification language for attributed tree transformation writetn by R. Wilhelm, U Saarlandes in the early 1980's.
- orante — a representation of a female figure, with outstretched arms and palms up in a gesture of prayer, in ancient and early Christian art.
- orants — a representation of a female figure, with outstretched arms and palms up in a gesture of prayer, in ancient and early Christian art.
- orated — Simple past tense and past participle of orate.
- orates — Third-person singular simple present indicative form of orate.
- orator — a person who delivers an oration; a public speaker, especially one of great eloquence: Demosthenes was one of the great orators of ancient Greece.
- orgeat — a syrup or drink made originally from barley but later from almonds, prepared with sugar and an extract of orange flowers.
- ornate — elaborately or sumptuously adorned, often excessively or showily so: They bought an ornate Louis XIV sofa.
- ortega — Daniel, full surname Ortega Saavedra. born 1945, Nicaraguan politician and former resistance leader; president of Nicaragua (1985–90) and from 2007
- osetra — a type of caviar deriving from the osetra sturgeon
- outbar — to keep out
- outram — Sir James. 1803–63, British soldier and administrator in India; he participated in the relief of Lucknow (1857) during the Indian Mutiny
- outran — simple past tense of outrun.
- outwar — to surpass or exceed in warfare
- ovator — a person who takes part in ovation for someone
- oxcart — an ox-drawn cart.
- pareto — Vilfredo [veel-fre-daw] /vilˈfrɛ dɔ/ (Show IPA), 1848–1923, Italian sociologist and economist in Switzerland.
- parrot — any of numerous hook-billed, often brilliantly colored birds of the order Psittaciformes, as the cockatoo, lory, macaw, or parakeet, having the ability to mimic speech and often kept as pets.
- parton — a constituent of the nucleon originally postulated in the theoretical analysis of high-energy scattering of electrons by nucleons and subsequently identified with quarks and gluons.
- pastor — a minister or priest in charge of a church.
- patrol — (of a police officer, soldier, etc.) to pass along a road, beat, etc., or around or through a specified area in order to maintain order and security.
- patron — (in Mexico and the southwestern U.S.) a boss; employer.
- popart — A grammar-driven programming environment generator. Uses Paddle.
- porta- — portable
- portal — portal vein.
- portia — the heroine of Shakespeare's Merchant of Venice, who, in one scene, disguises herself as a lawyer.
- potaro — a river in central Guyana: (Kaieteur Falls) one of highest waterfalls in the world at 741 feet (226 meters). 100 miles (161 km) long.
- protea — any shrub or small tree of the genus Protea, of tropical and southern Africa, having flowers with coloured bracts arranged in showy heads: family Proteaceae
- quarto — a book size of about 9½ × 12 inches (24 × 30 cm), determined by folding printed sheets twice to form four leaves or eight pages. Symbol: 4to, 4°.
- quatro — a small guitar with four or five strings or pairs of strings, used in Latin American and Caribbean music.
- rabato — a wide, stiff collar of the 17th century, worn flat over the shoulders or open in front and standing at the back.
- ragout — French Cookery. a highly seasoned stew of meat or fish, with or without vegetables.
- ragtop — an automobile having a folding canvas top; convertible.
- rajkot — a city in S Gujarat, in W India.
- raptor — a raptorial bird.
- ratfor — RATional Fortran
- ration — a fixed allowance of provisions or food, especially for soldiers or sailors or for civilians during a shortage: a daily ration of meat and bread.
- ratoon — a sprout or shoot from the root of a plant, especially a sugarcane, after it has been cropped.
- ratton — a rat.
- rebato — rabato.
- recoat — to coat (something) again or with a new coat of paint, varnish, etc
- rialto — an exchange or mart.
- rosita — a female given name, Spanish form of Rose.
- rostra — a plural of rostrum.