6-letter words containing r, i, o
- normie — (slang) A normal person.
- norris — Charles Gilman, 1881–1945, U.S. novelist and editor.
- o-ring — a ring of pliable material, as rubber or neoprene, used as a gasket: the failure of an O-ring caused the explosion that destroyed the space shuttle Challenger in 1986.
- oaring — Present participle of oar.
- obiter — Incidentally; in passing.
- octroi — (formerly especially in France and Italy) a local tax levied on certain articles, such as foodstuffs, on their entry into a city.
- ogrish — a monster in fairy tales and popular legend, usually represented as a hideous giant who feeds on human flesh.
- ogrism — a monster in fairy tales and popular legend, usually represented as a hideous giant who feeds on human flesh.
- oilers — Plural form of oiler.
- oilery — The business or goods of a dealer in oils.
- oilier — Comparative form of oily.
- oilrig — A rig, consisting of platform and machinery, used to drill for oil and other petroleum products like natural gas.
- oinker — (slang, countable) A pig: an animal of the genus Sus.
- oliver — one of the 12 paladins of Charlemagne. Compare Roland.
- on-air — broadcasting: an announcer with five years of on-air experience.
- onagri — a wild ass, Equus hemionus, of southwestern Asia.
- oniric — Alternative form of oneiric.
- oorali — a tribe of people found in the Idukki District in India
- oorial — a wild, horned Himalayan sheep, a subspecies of Ovis orientalis, with a red coat
- oozier — Comparative form of oozy.
- oppari — An impromptu folk song of southern India, traditionally sung by women during a death ceremony in order to memorialize the person who has died.
- oraria — a stole worn by deacons.
- orbier — like or pertaining to an orb.
- 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
- orcein — a red dye, the principal coloring matter of cudbear and orchil, obtained by oxidizing an ammoniacal solution of orcinol.
- orchi- — orchido- (sense 1)
- orchid — any terrestrial or epiphytic plant of the family Orchidaceae, of temperate and tropical regions, having usually showy flowers. Compare orchid family.
- orchil — a violet coloring matter obtained from certain lichens, chiefly species of Roccella.
- orchis — any orchid.
- orcish — (fantasy) Of or relating to orcs (monstrous humanoid creatures).
- ordain — to invest with ministerial or sacerdotal functions; confer holy orders upon.
- oreide — oroide.
- orexin — (biochemistry) Either of two neuropeptide hormones found in vertebrates; the hypocretins.
- orexis — the affective and conative character of mental activity as contrasted with its cognitive aspect; the appetitive aspect of an act.
- orgiac — relating to an orgy
- orgies — Plural form of orgy.
- oribis — Plural form of oribi.
- oriels — Plural form of oriel.
- orient — the Orient, the countries of Asia, especially East Asia. (formerly) the countries to the E of the Mediterranean.
- origan — an aromatic herb, especially oregano.
- origen — (Origenes Admantius) a.d. 185?–254? Alexandrian writer, Christian theologian, and teacher.
- origin — something from which anything arises or is derived; source; fountainhead: to follow a stream to its origin.
- orihon — a manuscript scroll having columns running across the width, folded in accordion fashion along the separating margins.
- orihou — a small New Zealand tree, Pseudopanax colensoi, with leaves in five parts
- orinda — a town in W California.
- oriole — any of several usually brightly colored, passerine birds of the family Oriolidae, of the Old World. Compare golden oriole.
- orisha — A divine entity that possesses the supernatural capability of reflecting some of the manifestations of Ol\u00f3d\u00f9mar\u00e8.
- orison — a prayer.
- orissa — a state in E India. 60,136 sq. mi. (155,752 sq. km). Capital: Bhubaneshwar.