9-letter words containing a, p, o, r
- operators — Plural form of operator.
- operatory — a room or other area with special equipment and facilities, as for dental surgery, scientific experiments, or the like.
- opercular — Botany, Zoology. a part or organ serving as a lid or cover, as a covering flap on a seed vessel.
- operettas — Plural form of operetta.
- opium war — a war between Great Britain and China that began in 1839 as a conflict over the opium trade and ended in 1842 with the Chinese cession of Hong Kong to the British, the opening of five Chinese ports to foreign merchants, and the grant of other commercial and diplomatic privileges in the Treaty of Nanking.
- orography — the branch of physical geography dealing with mountains.
- orphanage — an institution for the housing and care of orphans.
- orphaning — Present participle of orphan.
- 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.
- orthopnea — difficult or painful breathing except in an erect sitting or standing position.
- outparish — a parish located outside the boundaries of or at a distance from a town or city; an outlying parish.
- outplacer — a person who outplaces ex-employees
- outpreach — to outdo in preaching or overcome by preaching
- outspread — spread out; stretched out: outspread arms.
- over-plan — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.
- overapply — To apply to excess.
- overcheap — too cheap
- overhappy — too happy
- overpaint — to cover over with paint
- overpedal — to play (the piano) with excessive use of the pedals
- overplaid — a plaid pattern superimposed on another plaid
- overplant — to plant more than is necessary or possible to sustain
- oversharp — too sharp
- oviparity — producing eggs that mature and hatch after being expelled from the body, as birds, most reptiles and fishes, and the monotremes.
- oviparous — producing eggs that mature and hatch after being expelled from the body, as birds, most reptiles and fishes, and the monotremes.
- oviraptor — a bipedal dinosaur of the late Cretaceous period, having a toothless jaw and long forelimbs with clawed fingers
- p/e ratio — price-to-earnings ratio
- packboard — a rigid wooden or metal frame, covered with fabric and having shoulder straps, to which equipment can be strapped for carrying.
- packhorse — a horse used for carrying goods, freight, supplies, etc.
- paderborn — a city in North Rhine–Westphalia, in NW Germany.
- padre pio — a form of punishment shooting employed by paramilitaries in Northern Ireland in which the victim is shot through the palms of both hands
- padronism — a system of exploitative work controlled by a padrone
- paintwork — layer of paint on wall or vehicle
- pair bond — the exclusive relationship formed between a male and a female, esp in some species of animals and birds during courtship and breeding
- pair-bond — (of a mating couple) to form and maintain a pair bond.
- palampore — a cotton print woven in India and used for clothing, canopies, etc.
- palempore — an ornately patterned Indian cloth; a bed covering
- paloverde — a spiny, desert shrub, Cercidium floridum, of the legume family, of the southwestern U.S. and Mexico, having green bark.
- palpatory — to examine by touch, especially for the purpose of diagnosing disease or illness.
- panderous — resembling a pander
- panoramic — an unobstructed and wide view of an extensive area in all directions.
- pantropic — (especially of viruses) attracted to or affecting many types of body tissues.
- paparazzo — a freelance photographer, especially one who takes candid pictures of celebrities for publication.
- paperwork — written or clerical work, as records or reports, forming a necessary but often a routine and secondary part of some work or job.
- par avion — by plane (used especially as a designation on matter to be sent by airmail).
- para-bola — a plane curve formed by the intersection of a right circular cone with a plane parallel to a generator of the cone; the set of points in a plane that are equidistant from a fixed line and a fixed point in the same plane or in a parallel plane. Equation: y 2 = 2 px or x 2 = 2 py.
- parabolic — of, relating to, or involving a parable.
- paradoxal — having the nature of a paradox; self-contradictory.
- paradoxer — a proposer of a paradox
- paragould — a city in NE Arkansas.