9-letter words containing o, u, b
- bloquiste — (in Canada) a member or supporter of the Bloc Québécois
- blow tube — a tube for blowing air or oxygen into a flame to intensify its heat and direct it onto a small area
- blue book — A blue book is an official government report or register of statistics.
- blue comb — a disease of birds resembling Bright's disease in humans affecting especially domestic fowl, characterized by fever, sunken eyes, and shriveling of the skin of the wattles, shanks, and comb.
- blue john — a blue or purple fibrous variety of fluorspar occurring only in Derbyshire: used for vases, etc
- blue mold — any of various species of a fungus (genus Penicillium) that produce bluish masses of spores: some species yield penicillin and some are used to ripen certain cheeses
- blue moon — If you say that something happens once in a blue moon, you are emphasizing that it does not happen very often at all.
- blue note — a flattened third or seventh, used frequently in the blues
- blue onyx — jasper stained blue in imitation of lapis lazuli.
- blue roan — a horse having a black coat sprinkled with white hairs
- blueblood — an aristocratic person
- bluemouth — a deep water fish, Helicolenus dactylopterus
- bluepoint — a type of small oyster named after Blue Point, New York
- bluestone — a blue-grey sandstone containing much clay, used for building and paving
- bluetooth — Bluetooth is a technology that allows computers, mobile phones and other devices to communicate with each other without being connected by wires.
- blurt out — If someone blurts something out, they blurt it.
- board out — If someone in your care is boarded out, they are sent to stay with someone else.
- boarhound — a hound used to chase boar
- boathouse — A boathouse is a building at the edge of a lake, in which boats are kept.
- bodacious — If you say that someone or something is bodacious, you mean that they are very good or impressive.
- bodeguero — a wine-seller or grocer
- body-surf — to ride a wave by lying on it without a surfboard
- bodyguard — A bodyguard is a person or a group of people employed to protect someone.
- bogue out — /bohg owt/ To become bogus, suddenly and unexpectedly. "His talk was relatively sane until somebody asked him a trick question; then he bogued out and did nothing but flame afterward." See also bogosity.
- boieldieu — François Adrien [frahn-swa a-dree-an] /frɑ̃ˈswa a driˈɛ̃/ (Show IPA), 1775–1834, French composer.
- bonhomous — exhibiting bonhomie
- bontebuck — bontebok.
- boob tube — The boob tube is the television.
- boobquake — a Facebook campaign created to disprove the contention of an Iranian cleric that immodestly dressed women cause earthquakes
- book club — A book club is an organization that offers books at reduced prices to its members.
- book lung — the respiratory organ of a spider, scorpion, or other arachnid, composed of thin, membranous structures arranged like the leaves of a book.
- booked up — If a hotel, restaurant, theatre, or transport service is booked up, it has no rooms, tables, or tickets left for a time or date.
- booklouse — any small insect of the order Psocoptera, esp Trogium pulsatorium (common booklouse), a wingless species that feeds on bookbinding paste, etc
- boom-bust — relating to a supposed cycle in which periods of prosperity and growth alternate with periods of recession
- booze bus — a mobile police unit used to conduct drug and alcohol tests on drivers
- boozed-up — intoxicated; drunk
- bordereau — a memorandum or invoice prepared for a company by an underwriter, containing a list of reinsured risks
- bosanquet — Bernard, 1848–1923, English philosopher and writer.
- bottle up — If you bottle up strong feelings, you do not express them or show them, especially when this makes you tense or angry.
- bottleful — the amount a bottle will hold
- bottom-up — from the lowest level of a hierarchy or process to the top
- botulinal — of or relating to the bacterium Clostridium botulinum
- botulinum — an anaerobic botulin-secreting bacterium, Clostridium botulinum
- botulinus — an anaerobic bacterium, Clostridium botulinum, whose toxins (botulins) cause botulism: family Bacillaceae
- boughless — (of trees) having no boughs
- boulanger — Georges (ʒɔrʒ). 1837–91, French general and minister of war (1886–87). Accused of attempting a coup d'état, he fled to Belgium, where he committed suicide
- boulderer — a rock climber
- boulevard — A boulevard is a wide street in a city, usually with trees along each side.
- bound for — going or intending to go; on the way to; destined (usually followed by for): The train is bound for Denver.
- boundable — able to be bound or limited