13-letter words containing a, b, i, u
- brain surgery — operation on the brain
- brain truster — a member of a brain trust; an important but usually unofficial adviser.
- brass rubbing — A brass rubbing is a picture made by placing a piece of paper over a brass plate that has writing or a picture on it, and rubbing it with a wax crayon.
- brass-rubbing — an antiquarian's technique for copying designs from incised brass memorial slabs and the like.
- brassfounding — the practice of making things from brass
- brassicaceous — belonging to the plant family Brassicaceae, an alternative name for the plant family Cruciferae.
- brazen it out — to act in a bold way as if one need not be ashamed
- bread pudding — a rich cake made with bread soaked in milk, eggs, dried fruit and spices and baked, usually eaten cold
- brigham young — Andrew (Jackson, Jr.) born 1932, U.S. clergyman, civil-rights leader, politician, and diplomat: mayor of Atlanta, Georgia, 1981–89.
- brilliant cut — a cut for gems
- brilliant-cut — a cut intended to enhance the brilliance of a gem with the least possible sacrifice of weight, characterized by a form resembling two pyramids set base to base, truncated so as to give a broad table and a very small culet, and having from 18 to 104 facets, 58 being typical.
- brittany blue — a medium greenish blue.
- brutalization — to make brutal.
- buccaneerings — the characteristic actions of a buccaneer
- buck and wing — a boisterous tap dance, derived from Black and Irish clog dances
- bud variation — any variation in a bud due to changes in either its genetic composition or environment or both such that the resulting flower, fruit, or shoot differs from others of the same plant or species.
- bufadienolide — any of a family of steroid lactones, occurring in toad venom and squill, that possess cardiac-stimulating and antitumor activity.
- buffalo chips — the dried dung of buffalo used as fuel, especially by early settlers on the western plains.
- buffalo plaid — a plaid with large blocks formed by the intersection of two different-color yarns, typically red and black.
- buffalo wings — spicy fried segments of chicken wings, usually served with celery sticks and a sauce of blue cheese
- building land — land on which construction can take place
- built-up mast — a wooden mast formed of several shaped, longitudinal pieces joined together.
- bullhead rail — a rail having a cross section with a bulbous top and bottom, the top being larger
- bully-ragging — to bully; harass: to bullyrag fraternity plebs.
- bureaucratism — an official of a bureaucracy.
- bureaucratist — a believer in bureaucracy
- bureaucratize — to administer by or transform into a bureaucracy
- burglariously — in the manner of a burglar or buglary
- burial ground — A burial ground is a place where bodies are buried, especially an ancient place.
- buridan's ass — an example intended to show the deficiency of reason. An ass standing equidistant from two identical heaps of oats starves to death because reason provides no grounds for choosing to eat one rather than the other
- burning glass — a convex lens for concentrating the sun's rays into a small area to produce heat or fire
- burt standish — Burt L. pseudonym of Gilbert Patten.
- bus mastering — bus master
- business card — A person's business card or their card is a small card which they give to other people, and which has their name and details of their job and company printed on it.
- business case — a briefcase or attaché case.
- business park — an area specially designated and landscaped to accommodate business offices, warehouses, light industry, etc
- business plan — A business plan is a detailed plan for setting up or developing a business, especially one that is written in order to borrow money.
- businesswoman — A businesswoman is a woman who works in business.
- bustard quail — button quail.
- bustard-quail — any of several birds of the family Turnicidae, of warmer parts of the Old World, resembling but not related to the true quail. Also called bustard quail, hemipode.
- busto arsizio — a city in Lombardy, N Italy.
- butanoic acid — kind of acid
- butch haircut — a short haircut for men, similar to a crew cut.
- by its nature — If you say that something has a particular characteristic by its nature or by its very nature, you mean that things of that type always have that characteristic.
- by reputation — If you know someone by reputation, you have never met them but you have heard of their reputation.
- cabin cruiser — A cabin cruiser is a motor boat which has a cabin for people to live or sleep in.
- calculability — determinable by calculation; ascertainable: This map was designed so that distances by road are easily calculable.
- carbon tissue — a sheet of paper coated with pigmented gelatine, used in the carbon process
- carbon-tissue — paper faced with a preparation of carbon or other material, used between two sheets of plain paper in order to reproduce on the lower sheet that which is written or typed on the upper.
- carboniferous — yielding coal or carbon