12-letter words that end in on
- ariel sharon — Ariel, 1928–2014, Israeli military and political leader; prime minister 2001–06.
- arpeggiation — the writing, playing or singing of arpeggios
- articulation — Articulation is the action of producing a sound or word clearly, in speech or music.
- asphyxiation — Asphyxiation is a lack of oxygen in blood, which causes suffocation.
- asseveration — the act of asseverating.
- assibilation — (linguistics) A sound change resulting in a sibilant consonant, commonly the final phase of palatalization.
- assimilation — an assimilating or being assimilated
- assimulation — Obsolete form of assimilation.
- assuefaction — the condition of being or becoming familiar with or used to something
- augmentation — the act of augmenting or the state of being augmented
- auscultation — the diagnostic technique in medicine of listening to the various internal sounds made by the body, usually with the aid of a stethoscope
- autoignition — Automotive. the spontaneous ignition of fuel when introduced into the combustion chamber of an internal-combustion engine, as a result either of glowing carbon in the chamber or of the heat of compression.
- autorotation — the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent
- autoxidation — oxidation by exposure to atmospheric oxygen
- backsolution — The process or result of backsolving.
- banalization — the process of becoming or making something banal
- bard of avon — Shakespeare
- base bullion — smelted lead containing impurities, as gold, silver, or zinc, that are later removed.
- base station — a fixed transmitter that forms part of an otherwise mobile radio network
- basification — the process of making something alkaline
- battle wagon — a battleship.
- bear down on — to press down on; exert pressure on
- beauty salon — A beauty salon is the same as a beauty parlour.
- belly button — Your belly button is the small round thing in the centre of your stomach.
- beta version — beta testing
- biocorrosion — corrosion caused by or enhanced by bacteria or other microorganisms; biologically induced corrosion.
- bioturbation — the stirring of sediment by organisms
- bitter lemon — a non-alcoholic, fizzy drink with a lemon flavour
- bitter melon — balsam pear.
- black canyon — a canyon of the Colorado River between Arizona and Nevada: site of Boulder Dam.
- blastulation — the process of blastula formation
- bletheration — nonsense!
- blue stilton — a rich cheese made from whole milk, blue-veined and very strong in flavour
- bouleuterion — a council chamber in ancient Greece.
- box junction — (in Britain) a road junction having yellow cross-hatching painted on the road surface. Vehicles may only enter the hatched area when their exit is clear
- bring action — to start a lawsuit
- bud mutation — a variation produced by a genetic alteration in the bud such that the seeds produced by the resulting growth perpetuate the change in succeeding generations.
- bull session — A bull session is an informal conversation among a small group of people.
- bye-election — a special election, not held at the time of a general election, to fill a vacancy in Parliament.
- cachinnation — raucous laughter
- call time on — If you call time on something, you end it.
- calumniation — to make false and malicious statements about; slander.
- cameraperson — a camera operator
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- canalisation — The conversion of a river or other waterway to a canal.
- canalization — the act of canalizing
- cancellation — the fact or an instance of cancelling
- canonisation — Alternative spelling of canonization.
- canonization — Ecclesiastical. to place in the canon of saints.
- cantillation — the traditional notation representing the various traditional Jewish melodies to which scriptural passages are chanted