9-letter words that end in on
- obduction — (obsolete) The act of drawing or laying over, as a covering.
- objection — a reason or argument offered in disagreement, opposition, refusal, or disapproval.
- obreption — Canon Law. fraud in obtaining or attempting to obtain something from an official. Compare subreption (def 1).
- obsession — the domination of one's thoughts or feelings by a persistent idea, image, desire, etc.
- obtention — (rare, science) The act of obtaining.
- obtrusion — the act of obtruding.
- obvention — (obsolete) The act of happening incidentally; that which happens casually; an incidental advantage; an occasional offering.
- obversion — an act or instance of obverting.
- obviation — to anticipate and prevent or eliminate (difficulties, disadvantages, etc.) by effective measures; render unnecessary: to obviate the risk of serious injury.
- occlusion — the act or state of occluding or the state of being occluded.
- occursion — (obsolete) A meeting or striking together; a clash or collision.
- octillion — a cardinal number represented in the U.S. by 1 followed by 27 zeros, and in Great Britain by 1 followed by 48 zeros.
- offension — (obsolete) assault; attack.
- offseason — a time of year other than the regular or busiest one for a specific activity: Fares are lower in the off-season.
- oganesson — a highly radioactive element, of which only a few atoms have ever been produced. Symbol: Og; atomic no: 118; atomic wt: 294
- old saxon — the Saxon dialect of Low German in use before c1100. Abbreviation: OS.
- olecranon — the part of the ulna beyond the elbow joint.
- olfaction — the act of smelling.
- omination — (obsolete) The act of ominating; presaging; omen.
- ommission — Misspelling of omission.
- on and on — so as to be or remain supported by or suspended from: Put your package down on the table; Hang your coat on the hook.
- on-season — being a time of year that is the busiest or most popular for a specific activity; in season: on-season airfares.
- operation — an act or instance, process, or manner of functioning or operating.
- opination — The state or process of opining. For example:.
- opisthion — (anatomy) The middle of the posterior, or dorsal, margin of the great foramen of the skull.
- orpharion — (music) A musical instrument of the Renaissance, part of the cittern family, whose metal strings are tuned like a lute's and plucked with the fingers.
- orpington — one of a breed of large, white-skinned chickens.
- outreason — (transitive) To surpass in reasoning; to reason better than.
- outreckon — to surpass in reckoning
- ovulation — to produce and discharge eggs from an ovary or ovarian follicle.
- oxidation — the process or result of oxidizing.
- ozonation — the act or instance of ozonating
- pademelon — any of several small Australian wallabies, especially of the genus Thylogale.
- palmation — a palmate state or formation.
- palpation — to examine by touch, especially for the purpose of diagnosing disease or illness.
- pandation — the action of warping under weight
- pantaleon — a keyboard instrument that preceded the piano
- pantaloon — pantaloons, a man's close-fitting garment for the hips and legs, worn especially in the 19th century, but varying in form from period to period; trousers.
- par avion — by plane (used especially as a designation on matter to be sent by airmail).
- parathion — a deep-brown to yellow, poisonous liquid, C 1 0 H 1 4 NO 5 PS, used as an insecticide.
- parhelion — a bright circular spot on a solar halo; a mock sun: usually one of two or more such spots seen on opposite sides of the sun, and often accompanied by additional luminous arcs and bands.
- parkinson — a common neurologic disease believed to be caused by deterioration of the brain cells that produce dopamine, occurring primarily after the age of 60, characterized by tremors, especially of the fingers and hands, muscle rigidity, shuffling gait, slow speech, and a masklike facial expression.
- parthenon — the temple of Athena Parthenos on the Acropolis at Athens, completed c438 b.c. by Ictinus and Callicrates and decorated by Phidias: regarded as the finest Doric temple.
- partition — a division into or distribution in portions or shares.
- patterson — Eleanor Medill ("Cissy") 1884–1948, U.S. newspaper editor and publisher.
- peltation — having the stalk or support attached to the lower surface at a distance from the margin, as a leaf; shield-shaped.
- pendleton — a city in N Oregon.
- pendragon — either of two kings of ancient Britain. Compare Arthur (def 2), Uther.
- penillion — the Welsh art or practice of singing poetry in counterpoint to a traditional melody played on the harp
- penstemon — any of numerous chiefly North American plants belonging to the genus Penstemon, of the figwort family, some species of which are cultivated for their showy, variously colored flowers.