4-letter words containing o
- boho — Bohemian (sense 4)
- bohr — Aage Niels (ˈɔɡə neːls). 1922–2009, Danish physicist, noted for his work on nuclear structure. He shared the Nobel prize for physics 1975
- boil — When a hot liquid boils or when you boil it, bubbles appear in it and it starts to change into steam or vapour.
- boke — to retch or vomit
- bola — a missile used by gauchos and Indians of South America, consisting of two or more heavy balls on a cord. It is hurled at a running quarry, such as an ox or rhea, so as to entangle its legs
- bold — Bold lines or designs are drawn in a clear, strong way.
- bole — the trunk of a tree
- boll — the fruit of such plants as flax and cotton, consisting of a rounded capsule containing the seeds
- bolo — a large single-edged knife, originating in the Philippines
- bolt — A bolt is a long metal object which screws into a nut and is used to fasten things together.
- boma — an enclosure, esp a palisade or fence of thorn bush, set up to protect a camp, herd of animals, etc
- bomb — A bomb is a device which explodes and damages or destroys a large area.
- bomu — a river in central Africa, rising in the SE Central African Republic and flowing west into the Uele River, forming the Ubangi River. Length: about 800 km (500 miles)
- bona — (italics) Latin. (used with a singular verb) good faith; absence of fraud or deceit; the state of being exactly as claims or appearances indicate: The bona fides of this contract is open to question. Compare mala fides.
- bond — A bond between people is a strong feeling of friendship, love, or shared beliefs and experiences that unites them.
- bone — Your bones are the hard parts inside your body which together form your skeleton.
- bong — A bong is a long, deep sound such as the sound made by a big bell.
- bonk — If two people bonk, they have sexual intercourse.
- bonn — a city in W Germany, in North Rhine-Westphalia on the Rhine: the former capital (1949–90) of West Germany; university (1786). Pop: 311 052 (2003 est)
- bony — Someone who has a bony face or bony hands, for example, has a very thin face or very thin hands, with very little flesh covering their bones.
- boob — A woman's boobs are her breasts.
- book — A book is a number of pieces of paper, usually with words printed on them, which are fastened together and fixed inside a cover of stronger paper or cardboard. Books contain information, stories, or poetry, for example.
- bool — a bowling bowl
- boom — If there is a boom in the economy, there is an increase in economic activity, for example in the amount of things that are being bought and sold.
- boon — You can describe something as a boon when it makes life better or easier for someone.
- boor — If you refer to someone as a boor, you think their behaviour and attitudes are rough, uneducated, and rude.
- boot — Boots are shoes that cover your whole foot and the lower part of your leg.
- bopp — Franz, 1791–1867, German philologist.
- bor- — boro-
- bora — a violent cold north wind blowing from the mountains to the E coast of the Adriatic, usually in winter
- bore — If someone or something bores you, you find them dull and uninteresting.
- borf — (jargon) To uncerimoniously disconnect someone from a system without prior warning. BBS Sysops routinely "borf" pest users by turning off the modem or by hitting the "auto-borf" key sequence. You can also be "borfed" by software dropping carrier due to a bug. The origin of the term is unknown but it has been in use since at least 1982.
- borg — Björn (bjœrn). born 1956, Swedish tennis player: Wimbledon champion 1976–80; French Open champion 1974–75, 1978–81
- bork — to incorrectly configure a device, esp a computer
- borm — to smear with paint, oil, etc
- born — When a baby is born, it comes out of its mother's body at the beginning of its life. In formal English, if you say that someone is born of someone or to someone, you mean that person is their parent.
- bors — one the knights of the Round Table, nephew of Lancelot
- bort — an inferior grade of diamond used for cutting and drilling or, in powdered form, as an industrial abrasive
- bosc — a sweet, russet winter pear
- bose — Sir Jagadis Chandra (dʒəɡəˈdiːs ˈtʃʌndrə). 1858–1937, Indian physicist and plant physiologist
- bosh — empty or meaningless talk or opinions; nonsense
- bosk — a small wood of bushes and small trees
- boss — Your boss is the person in charge of the organization or department where you work.
- bota — a small leather wine container
- botb — British Overseas Trade Board
- bote — compensation given for injury or damage to property
- both — You use both when you are referring to two people or things and saying that something is true about each of them.
- boto — a freshwater South American dolphin, Inia geoffrensis, having a long snout and fluctuating in color between pink and gray: inhabits the Amazon and Orinoco river systems.
- bots — a digestive disease of horses and some other animals caused by the presence of botfly larvae in the stomach
- bott — bot1