11-letter words containing b, o, y, a
- keyboardist — the row or set of keys on a piano, organ, or the like.
- knowability — capable of being known.
- labor party — one of the chief political parties of Australia, generally supporting the interests of organized labour
- laboriously — requiring much work, exertion, or perseverance: a laborious undertaking.
- lay brother — a man who has taken religious vows and habit but is employed by his order chiefly in manual labor.
- layer board — lear board.
- loading bay — dock where cargo is loaded
- lobachevsky — Nikolai Ivanovich [nyi-kuh-lahy ee-vah-nuh-vyich] /nyɪ kʌˈlaɪ iˈvɑ nə vyɪtʃ/ (Show IPA), 1793–1856, Russian mathematician.
- local derby — a football match between two teams from the same area
- lucubratory — Composed by candlelight, or at night.
- lymphoblast — a large, metabolically active lymphocyte shortly before it enters into mitosis.
- lyssophobia — a pathological fear of going insane.
- man and boy — from childhood
- marionberry — a cross between a loganberry and a blackberry
- marker buoy — a buoy used to distinguish or mark something
- maryborough — a seaport in E Australia.
- may blossom — the blossom of the may tree or hawthorn
- memory bank — the complete records, archives, or the like of an organization, country, etc.
- mob oratory — oratory designed to appeal to and inflame the emotions of a crowd, as for example Hitler's oratory
- moldability — a hollow form or matrix for giving a particular shape to something in a molten or plastic state.
- monday club — (in Britain) a club made up of right-wing Conservatives who originally met together for lunch on Monday: founded in 1961
- monkey bars — children's climbing frame
- montego bay — a city in NW Jamaica: seaside resort.
- moveability — Alternative form of movability.
- myeloblasts — Plural form of myeloblast.
- neoytterbia — A former name of ytterbium.
- nonplayable — Not playable.
- nonsyllabic — not forming a syllable or the nucleus of a syllable.
- nonverbally — In a nonverbal manner.
- nyctophobia — an abnormal fear of night or darkness.
- obfuscatory — to confuse, bewilder, or stupefy.
- objurgatory — to reproach or denounce vehemently; upbraid harshly; berate sharply.
- observantly — quick to notice or perceive; alert.
- observatory — a place or building equipped and used for making observations of astronomical, meteorological, or other natural phenomena, especially a place equipped with a powerful telescope for observing the planets and stars.
- obsignatory — (obsolete) Ratifying; confirming by sealing.
- obstinately — firmly or stubbornly adhering to one's purpose, opinion, etc.; not yielding to argument, persuasion, or entreaty.
- on stand-by — in a state of readiness for action or use
- onyx marble — Mexican onyx.
- openability — The quality of being openable.
- operability — that can be treated by a surgical operation. Compare inoperable (def 2).
- orbicularly — In an orbicular fashion.
- oveta hobby — Oveta Culp [kuhlp] /kʌlp/ (Show IPA), 1905–1995, U.S. newspaper publisher and government official: first director of Women's Army Corps 1942–45; first Secretary of Health, Education, and Welfare 1953–55.
- oyster crab — a pea crab, Pinnotheres ostreum, the female of which lives as a commensal within the mantle cavity of oysters.
- paleobotany — the branch of paleontology dealing with fossil plants.
- parent body — an organization's parent body is the organization that created it and usually still controls it
- payload bay — cargo bay.
- peace lobby — a lobby for peace or the end of conflict
- penalty box — an enclosed space adjacent to the rink for penalized players, the penalty timekeeper, the game timekeeper, and the official scorer.
- perth amboy — a seaport in E New Jersey.
- pineal body — (formerly) the pineal gland.