6-letter words containing o, t, r
- 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.
- oberth — Hermann Julius [hur-muh n jool-yuh s;; German her-mahn yoo-lee-oo s] /ˈhɜr mən ˈdʒul yəs;; German ˈhɛr mɑn ˈyu liˌʊs/ (Show IPA), 1894–1989, German physicist: pioneer in rocketry.
- obiter — Incidentally; in passing.
- obvert — to turn (something) so as to show a different surface.
- octroi — (formerly especially in France and Italy) a local tax levied on certain articles, such as foodstuffs, on their entry into a city.
- oerter — Alfred A ("Al") 1936–2007, U.S. track and field athlete: four-time Olympic discus champion.
- olmert — Ehud [ey-hoo d] /ˈeɪ hʊd/ (Show IPA), born 1945, Israeli politician: prime minister 2006–09.
- 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.
- oporto — a port in NW Portugal, near the mouth of the Douro River.
- optran — Specification language for attributed tree transformation writetn by R. Wilhelm, U Saarlandes in the early 1980's.
- or not — You use or not to emphasize that a particular thing makes no difference to what is going to happen.
- 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.
- orbits — the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
- orbity — a bereavement or the state of being bereaved
- orgeat — a syrup or drink made originally from barley but later from almonds, prepared with sugar and an extract of orange flowers.
- orient — the Orient, the countries of Asia, especially East Asia. (formerly) the countries to the E of the Mediterranean.
- 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
- ortho- — straight or upright
- orthos — Plural form of ortho.
- ortler — a range of the Alps in N Italy.
- ortles — a range of the Alps in N Italy. Highest peak: 3899 m (12 792 ft)
- osbert — a male given name: from Old English words meaning “god” and “bright.”.
- osetra — a type of caviar deriving from the osetra sturgeon
- ostler — hostler.
- others — additional or further: he and one other person.
- otprom — One Time Programmable Read-Only Memory
- otters — Plural form of otter.
- ouster — expulsion or removal from a place or position occupied: The opposition called for the ouster of the cabinet minister.
- outbar — to keep out
- outcry — a strong and usually public expression of protest, indignation, or the like.
- outers — Plural form of outer.
- outher — (obsolete) either.
- outler — a farm animal kept out of doors
- 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.
- outred — to be redder than
- outrig — the supply of something
- outros — Plural form of outro.
- outrow — to surpass in rowing; row faster than.
- outrun — to run faster or farther than.
- outwar — to surpass or exceed in warfare
- ouvert — (ballet) A position in which the feet are apart, or a movement which brings them apart.
- ovator — a person who takes part in ovation for someone