12-letter words containing a, b, o, l
- arousability — to stimulate sexually.
- art mobilier — small, movable art objects, especially primitive or prehistoric works of art.
- assault boat — a portable boat used for landing troops on beaches and for crossing rivers.
- assibilation — (linguistics) A sound change resulting in a sibilant consonant, commonly the final phase of palatalization.
- astonishable — (obsolete) Astonishing.
- astrobiology — the branch of biology that investigates the possibility of life elsewhere in the universe
- at a low ebb — in a state or period of weakness, lack of vigour, or decline
- atholl brose — a mixture of whisky and honey left to ferment before consumption
- authorizable — able to be authorized
- automobiling — (dated) present participle of automobile.
- automobilism — the use of automobiles, or the practices associated with them
- automobilist — Driver; person who uses a motor vehicle such as car, van or truck.
- automobility — the use of motor cars
- avoidability — The possibility of avoiding; the state or condition of being avoidable.
- avowableness — the quality or condition of being avowable
- baby boomlet — a period of increase in the birthrate, smaller than a baby boom, as in the U.S. during the 1980s and 1990s.
- bachelor pad — a flat in which a bachelor lives
- bachelorette — A bachelorette is a woman who has never married.
- bachelorhood — the state of being a bachelor.
- bachelorship — the state of being a bachelor; bachelorhood
- back catalog — A musical performer's back catalog is the music that they recorded and released in the past rather than their latest recordings.
- back molding — a molding, as a backband, applied to interior window and door trim to conceal the edge of the wall surface.
- backboneless — lacking backbone; cowardly
- backsolution — The process or result of backsolving.
- bacon-slicer — a machine for cutting bacon into slices
- bacteriology — Bacteriology is the science and the study of bacteria.
- baden-powell — Robert Stephenson Smyth (smɪθ, smaɪθ), 1st Baron Baden-Powell. 1857–1941, British general, noted for his defence of Mafeking (1899–1900) in the Boer War; founder of the Boy Scouts (1908) and (with his sister Agnes) the Girl Guides (1910)
- baffle board — a plate or mechanical device designed to restrain or regulate the flow of a fluid, the emission of light or sound, or the distribution of sound, esp in a loudspeaker or microphone
- baklava code — (humour, programming) Code with too many layers. Also known as Lasagne Code.
- ball control — the skill of controlling the ball in a game such as football or tennis
- ball of fire — a very lively person
- ballad opera — an opera consisting of popular tunes to which appropriate words have been set, interspersed with spoken dialogue
- balladmonger — (formerly) a seller of ballads, esp on broadsheets
- balletomanes — Plural form of balletomane.
- balletomania — passionate enthusiasm for ballet
- balloon loan — a loan in respect of which interest and capital are paid off in instalments at irregular intervals
- balloon sail — a large light bellying sail used in light winds
- balloon seat — (on some 18th-century chairs) a seat having an outline resembling that of a bell.
- balloon tire — a wide, deep-walled pneumatic tire with relatively low air pressure to lessen the shock of bumps
- balloon tyre — a pneumatic tyre containing air at a relatively low pressure and having a wide tread
- balloon vine — a tropical tendril-climbing sapindaceous plant, Cardiospermum halicacabum, cultivated for its ornamental balloon-like seed capsules
- ballot paper — A ballot paper is a piece of paper on which you indicate your choice or opinion in an election or ballot.
- ballottement — a technique of feeling for a movable object in the body, esp confirmation of pregnancy by feeling the rebound of the fetus following a quick digital tap on the wall of the uterus
- balsamaceous — any of various fragrant exudations from certain trees, especially trees of the genus Commiphora, as balm-of-Gilead. Compare balm (def 1).
- balto-slavic — the Baltic and Slavic languages, when considered as constituting a subfamily within the Indo-European family of languages: the Baltic and Slavic branches are now generally considered by scholars as independently derived from Indo-European
- banalization — the process of becoming or making something banal
- banderillero — a bullfighter's assistant who sticks banderillas into the bull
- bank holiday — A bank holiday is a public holiday.
- bank swallow — a swallow, Riparia riparia, of the Northern Hemisphere, that nests in tunnels dug in sand or clay banks.
- banner cloud — a plume-shaped cloud extending downwind from an isolated mountain peak. Also called cloud banner. Compare cap cloud (def 1).