12-letter words containing o, p, a
- blotting-pad — an object to one side of which a piece of blotting paper is attached for blotting text handwritten in ink
- boating trip — a trip or holiday in a boat such as a sailing boat or canal boat
- boatsmanship — seamanship as applied to boats, especially rowboats and motorboats.
- bobbery pack — a mixed pack of hunting dogs, often not belonging to any of the hound breeds
- body repairs — repairs to the bodywork of cars
- bog asphodel — either of two liliaceous plants, Narthecium ossifragum of Europe or N. americanum of North America, that grow in boggy places and have small yellow flowers and grasslike leaves
- boobytrapped — to set with or as if with a booby trap; attach a booby trap to or in.
- booklet pane — Philately. any of a number of panes or small pages of postage stamps, stapled together into a booklet for the convenience of users.
- boot-scraper — a contraption consisting of an upright metal shape formerly placed outside some houses to enable people to scrape the mud from their boots before going in
- bootleg play — a play in which the quarterback pretends to hand the ball to a teammate, hides it by placing it next to his hip, and runs with it.
- bottle party — a party to which guests bring drink
- branch depot — one of a several depots receiving stock from the same central supplier
- branch point — Electricity. a point in an electric network at which three or more conductors meet.
- breastplough — a plough driven by the worker's breast, often used to pare turf
- breath group — a sequence of sounds articulated in the course of a single exhalation; an utterance or part of an utterance produced between pauses for breath.
- broad jumper — a participant in the long jump.
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- burglarproof — safeguarded or secure against burglary.
- bypass ratio — the ratio of the amount of air that bypasses the combustion chambers of an aircraft gas turbine to that passing through them
- cacophonical — cacophonous
- cacophonious — cacophonous
- caesalpinoid — of, relating to, or belonging to the Caesalpinoideae, a mainly tropical subfamily of leguminous plants that have irregular flowers: includes carob, senna, brazil, cassia, and poinciana
- caloreceptor — a receptor stimulated by heat.
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- camera phone — A camera phone is a mobile phone that can also take photographs.
- camerapeople — a person who operates a camera, especially a movie or TV camera.
- cameraperson — a camera operator
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- camphor ball — mothball
- camphor tree — a lauraceous evergreen E Asian tree, Cinnamomum camphora, whose aromatic wood yields camphor
- camphorating — Present participle of camphorate.
- campo formio — a village in NE Italy, in Friuli-Venezia Giulia: scene of the signing of a treaty in 1797 that ended the war between revolutionary France and Austria
- campo grande — a city in SW Brazil, capital of Mato Grosso do Sul state on the São Paulo–Corumbá railway: market centre. Pop: 746 000 (2005 est)
- campodeiform — resembling insects of the genus Campodea
- cancelpoodle — (messaging) (Or Cancelbunny) A manifestation of the Cancelmoose in the form of a more selective (and probably not automated) way to cancel Usenet articles. The term became common during the alt.religion.scientology wars of the mid-90s, during which Cancelpoodles were used. The "poodle" part is an allusion to one of the parties obliquely involved in the fray, who an earlier well-known witticism had compared to "a psychotic poodle".
- cancerphobia — an excessive fear of getting cancer
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- canton crepe — a fine crinkled silk or rayon crepe fabric, slightly heavier than crepe de Chine
- cap and gown — a cap with a flat top ( mortarboard) and a long robe, worn at some academic ceremonies, as commencement, and often used to symbolize the academic life
- capacitation — to make capable; enable.
- caparisoning — Present participle of caparison.
- cape buffalo — a large, black, nearly hairless, very fierce buffalo (Syncerus caffer) of South Africa, with horns joined at the bases to form a helmetlike structure
- cape cod bay — a part of Massachusetts Bay, enclosed by the Cape Cod peninsula.
- cape colored — a South African of mixed European and African or Malayan ancestry.
- cape comorin — a headland at the southernmost point of India, in Tamil Nadu state
- cape delgado — a headland on the NE coast of Mozambique
- cape nordkyn — a cape in N Norway: the northernmost point of the European mainland
- cape ortegal — a cape in NW Spain, projecting into the Bay of Biscay
- cape sounion — Cape, a cape in E central Greece, SE of Athens, at the tip of the Attica peninsula, in W Aegean Sea.
- cape sparrow — a sparrow, Passer melanurus, very common in southern Africa: family Ploceidae