7-letter words containing a, b, o
- aerobot — an unmanned aircraft used esp in space exploration
- aerobus — a type of monorail that is suspended by an overhead cable
- airboat — a light, flat-bottomed boat driven by a propeller revolving in the air
- albedos — Plural form of albedo.
- albergo — (in Italy) a corporation of noble families typically formed to enable the success of business ventures
- albinos — Plural form of albino.
- alborak — the white horse that Muhammad rode to heaven.
- alebion — a son of Poseidon who, with his brother Dercynus, was killed by Hercules while attempting to steal the cattle that Hercules had taken from Geryon.
- allobar — any form of an element with a different isotopic composition than that of the naturally occurring form of the element
- amboina — Ambon
- amboise — a town in NW central France, on the River Loire: famous castle, a former royal residence. Pop: 11 457 (1999)
- amboyna — the mottled curly-grained wood of an Indonesian leguminous tree, Pterocarpus indicus, used in making furniture
- ambroid — amberoid
- ambrose — Saint. ?340–397 ad, bishop of Milan; built up the secular power of the early Christian Church; also wrote music and Latin hymns. Feast day: Dec 7 or April 4
- ameboid — resembling or related to amebas.
- amoebae — ameba.
- amoebas — Plural form of amoeba.
- amoebic — of, relating to, or resembling an ameba.
- anobiid — any coleopterous beetle of the family Anobiidae, in which the pronotum characteristically forms a hood that more or less covers the head. The family includes such notorious pests as the furniture beetle (Anobium punctatum) and the deathwatch beetle, the larvae of which attack furniture and beams
- anybody — Anybody means the same as anyone.
- aphobia — Fearlessness, a lack of fear.
- araroba — a Brazilian leguminous tree, Andira araroba
- arbored — having an arbor, or bower
- arbores — Plural form of arbor.
- arboret — an area planted with shrubs
- arborio — a variety of cultivated short-grain rice with a high starch content: used especially for risotto.
- arbours — Plural form of arbour.
- arecibo — seaport in N Puerto Rico: pop. 100,000
- armbone — (anatomy) A bone in the arm, specifically, the humerus.
- attaboy — an expression of approval or exhortation
- audubon — John James. 1785–1851, US naturalist and artist, noted particularly for his paintings of birds in Birds of America (1827–38)
- autobio — autobiography.
- autobus — a motor vehicle which can carry a large group of passengers
- baboons — Plural form of baboon.
- babudom — the rule of babus
- babylon — the chief city of ancient Mesopotamia: first settled around 3000 bc
- bacalao — dried salt cod
- back of — the rear part of the human body, extending from the neck to the lower end of the spine.
- backhoe — A backhoe is a large vehicle which is used for moving large amounts of earth.
- backlog — A backlog is a number of things which have not yet been done but which need to be done.
- backlot — an area outside a film or television studio used for outdoor filming
- backoff — the rear part of the human body, extending from the neck to the lower end of the spine.
- backout — an instance of withdrawing (from an agreement, etc)
- bacolod — a town in the Philippines, on the NW coast of Negros Island. Pop: 468 000 (2005 est)
- baconer — a pig that weighs between 83 and 101 kg, from which bacon is cut
- bad boy — male child: naughty
- bad off — If you are bad off, you are in a bad situation.
- badajoz — a city in SW Spain: strategically positioned near the frontier with Portugal. Pop: 138 415 (2003 est)
- badious — chestnut coloured; brownish-red
- bag job — illegal entry, especially as authorized by an agency of the federal government to gather criminal evidence, install listening devices, etc.