7-letter words containing r, i, o
- oil rig — An oil rig is a structure on land or in the sea that is used when getting oil from the ground.
- oilbird — guacharo.
- olitory — a kitchen garden for growing herbs and vegetables
- olivary — shaped like an olive.
- olivier — Laurence (Kerr) [kur;; British kahr,, kair] /kɜr;; British kɑr,, kɛər/ (Show IPA), (Baron Olivier of Brighton) 1907–89, English actor and director.
- omicron — the 15th letter of the Greek alphabet (O, o).
- omitter — to leave out; fail to include or mention: to omit a name from a list.
- on fire — a state, process, or instance of combustion in which fuel or other material is ignited and combined with oxygen, giving off light, heat, and flame.
- oneiric — of or relating to dreams.
- oneiro- — indicating a dream
- onigiri — A rice ball.
- onliner — A person who is online; an Internet user.
- ontario — a province in S Canada, bordering on the Great Lakes. 412,582 sq. mi. (1,068,585 sq. km). Capital: Toronto.
- ophiura — a sea creature, similar to a starfish, of the Ophiuridae family
- oporice — a former medicine made with wine and autumn fruits
- oralism — the theory, practice, or advocacy of education for the deaf chiefly or exclusively through lipreading, training in speech production, and training of residual hearing.
- oralist — an advocate of oralism.
- orality — the condition or quality of being oral; collectively, the personality traits characteristic of the oral phase of psychosexual development.
- oranian — Ibero-Maurusian.
- orarian — a person who lives on the coast
- orarion — a stole worn by deacons.
- orarium — orarion.
- orating — Present participle of orate.
- oration — a formal public speech, especially one delivered on a special occasion, as on an anniversary, at a funeral, or at academic exercises.
- oratrix — a woman who delivers an oration; a public speaker, especially one of great eloquence.
- orbison — Roy, 1936–88, U.S. rock and roll singer and songwriter.
- orbital — of or relating to an orbit.
- orbited — the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
- orbiter — Also called space shuttle orbiter. the crew- and payload-carrying component of the space shuttle.
- orchids — Plural form of orchid.
- orchils — Plural form of orchil.
- orcinol — a white, crystalline, water-soluble solid, C 7 H 8 O 2 , sweet but unpleasant in taste, that reddens on exposure to air: obtained from many lichens or produced synthetically and used chiefly as a reagent for certain carbohydrates.
- ordains — Third-person singular simple present indicative form of ordain.
- ordinal — of or relating to an order, as of animals or plants.
- ordinee — a person who is ordained or who is to be ordained
- ordines — Roman Catholic Church. a booklet containing short and abbreviated directions for the contents of the office and Mass of each day in the year.
- orectic — of or relating to desire; appetitive.
- organic — noting or pertaining to a class of chemical compounds that formerly comprised only those existing in or derived from plants or animals, but that now includes all other compounds of carbon.
- orgiast — One who celebrates orgies.
- oriency — the state of having an iridescent lustre
- oriente — a region in Ecuador, E of the Andes: the border long disputed by Peru.
- orients — Third-person singular simple present indicative form of orient.
- orifice — an opening or aperture, as of a tube or pipe; a mouthlike opening or hole; mouth; vent.
- origami — the traditional Japanese art or technique of folding paper into a variety of decorative or representational forms, as of animals or flowers.
- origins — Plural form of origin.
- orillia — a city in SE Ontario, in S Canada.
- orinoco — a river in N South America, flowing N from the border of Brazil, along the E border of Colombia, and NE through Venezuela to the Atlantic. 1600 miles (2575 km) long.
- orioles — Plural form of oriole.
- orisons — Plural form of orison.
- orizaba — Also called Citlaltepetl. an inactive volcano in SE Mexico, in Veracruz state. 18,546 feet (5653 meters).