12-letter words containing a, f
- beaver fever — an infectious disease caused by drinking water that has been contaminated by wildlife
- bed of nails — a situation or position of extreme difficulty
- beef extract — a soluble paste of beef or beef blood extracts.
- beef sausage — a sausage made of beef rather than pork
- beefheartian — of or recalling the music of Captain Beefheart and his Magic Band, an avant-garde rock/blues band (1966–1982); incorporating strange rhythms, free jazz elements, bizarre lyrics, and growling vocals
- bella figura — a good impression; fine appearance
- ben franklin — Aretha [uh-ree-thuh] /əˈri θə/ (Show IPA), born 1942, U.S. singer.
- benefactress — a female benefactor
- beneficially — conferring benefit; advantageous; helpful: the beneficial effect of sunshine.
- beneficiated — to treat (ore) to make more suitable for smelting.
- bid defiance — to resist boldly
- biflagellate — having two flagella
- bifunctional — having two functions
- bill of fare — The bill of fare at a restaurant is a list of the food for a meal from which you may choose what you want to eat.
- bill of sale — a deed transferring personal property, either outright or as security for a loan or debt
- bioflavonoid — any of a group of biologically active flavone compounds that may help maintain the blood's capillary walls, reducing the likelihood of hemorrhaging: widely found in plants, esp. citrus fruits
- birch family — the plant family Betulaceae, characterized by deciduous trees having simple serrate leaves, male flowers in drooping catkins, female flowers in short clusters, and one-seeded nuts, and including the alder, birch, hazel, and hornbeam.
- bird fancier — a person who keeps, breeds, or sells birds
- birth family — one's biological parents and siblings, as contrasted with one's adoptive family.
- birth father — a biological mother (birth mother) or biological father (birth father) a biological parent.
- black africa — Black Africa is the part of Africa to the south of the Sahara Desert.
- black coffee — coffee with no milk, milk substitute, or cream added
- black forest — wooded mountain region in SW Germany
- black friday — the day after the US Thanksgiving Day in late November, regarded as the start of the Christmas shopping season
- black-figure — pertaining to or designating a style of vase painting developed in Greece in the 7th and 6th centuries b.c., chiefly characterized by silhouetted figures painted in black slip on a red clay body, details incised into the design, and a two-dimensional structure of form and space.
- bladder fern — a small fern, Cystoperis fragilis, with graceful lanceolate leaves, typically growing on limestone rocks and walls
- blast effect — the damage caused by the force of an explosive blast
- blind flange — a disk for closing the end of a pipe, having holes for bolting it to a flange.
- blue catfish — a large freshwater catfish, Ictalurus furcatus, that is a popular food fish in the states of the Mississippi River valley.
- bluefin tuna — the largest tuna (Thunnus thynnus): it has bright red flesh and is important as a game and food fish
- bluesnarfing — the practice of using one Bluetooth-enabled mobile phone to steal contact details, ring tones, images, etc from another
- body fascism — intolerance of those whose bodies do not conform to a particular view of what is desirable
- bog of allen — a region of peat bogs in central Ireland, west of Dublin. Area: over 10 sq km (3.75 sq miles)
- bomb factory — a site or building in which terrorists illicitly and secretly create bombs
- boniface iii — pope a.d. 607.
- boniface vii — antipope a.d. 974, 984–985.
- bounce flash — a flash lamp designed to produce a bounced flash.
- boyoma falls — a series of seven cataracts in the NE Democratic Republic of Congo, on the upper River Congo: forms an unnavigable stretch of 90 km (56 miles), which falls 60 m (200 ft)
- braced frame — a building frame employing a heavy, braced framework of solid girts mortised into solid posts the full height of the frame, with studs one story high filling the interstices.
- bracket foot — a corner foot of a chest or the like joining the sides in a concave line.
- brain freeze — Also called ice-cream headache. a pain in the temples and forehead brought on by quickly consuming very cold food or drink.
- brassfounder — a person who makes things from brass
- brazen-faced — shameless or impudent
- break of day — dawn; daybreak.
- breed of cat — type; sort; variety: The new airplane is a completely different breed of cat from any that has been designed before.
- bubble float — a hollow spherical float that can be weighted with water to aid casting
- buffalo bill — nickname of William Frederick Cody. 1846–1917, US showman who toured Europe and the US with his famous Wild West Show
- buffalo bird — a cowbird, Molothrus ater, of North America.
- buffalo fish — any of a genus (Ictiobus) of large, humpbacked, freshwater sucker fishes found in North America
- buffalo gnat — any of various small North American blood-sucking dipterous insects of the genus Simulium and related genera: family Simuliidae