13-letter words containing o, s, b, r
- brown mustard — black mustard. See under mustard (def 2).
- buffalo grass — a short grass, Buchloë dactyloides, growing on the dry plains of the central US
- bunko steerer — a swindler, especially a person who lures another to a gambling game to be cheated.
- burglariously — in the manner of a burglar or buglary
- busheled iron — heterogeneous iron made from scrap iron and steel.
- buster collar — a round collar, similar to a lampshade in shape, that is fitted round the neck of an animal or bird, for example to prevent it removing or interfering with a dressing or other treatment
- busto arsizio — a city in Lombardy, N Italy.
- butcher's boy — a boy doing deliveries for a butcher and perhaps also learning the butchery trade, esp in the past
- buttress root — a tree root that extends above ground as a platelike outgrowth of the trunk supporting the tree. Buttress roots are mainly found in trees of tropical rain forests
- by contraries — contrary to what is expected
- by yourselves — if you are by yourselves, or all by yourselves, you are alone
- car boot sale — A car boot sale is a sale where people sell things they own and do not want from a little stall or from the back of their car.
- carbohydrates — foods which contain carbohydrate
- carbolic soap — a disinfectant soap containing phenol
- carbon offset — a compensatory measure made by an individual or company for carbon emissions, usually through sponsoring activities or projects which increase carbon dioxide absorption, such as tree planting
- 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
- carbonisation — (chiefly, British) alternative spelling of carbonization.
- casual labour — people who are employed on a temporary, rather than a permanent or regular basis
- catcher's box — box1 (def 16d).
- categorisable — Alternative spelling of categorizable.
- cerebrospinal — of or relating to the brain and spinal cord
- charles abbot — Charles Greeley, 1872–1973, U.S. astrophysicist.
- checkerblooms — Plural form of checkerbloom.
- christmas box — a tip or present given at Christmas, esp to postmen, tradesmen, etc
- clair-obscure — chiaroscuro.
- clapperboards — Plural form of clapperboard.
- clare-obscure — chiaroscuro.
- claustrophobe — a person who suffers from claustrophobia.
- climbing rose — any of various roses that ascend and cover a trellis, arbor, etc., chiefly by twining about the supports.
- clothes brush — a brush used to remove dust, fluff, dirt, etc from clothes
- coachbuilders — Plural form of coachbuilder.
- coaster brake — a brake on a bicycle that engages when the pedals are turned in reverse
- cobaltiferous — containing cobalt
- cobbler's wax — a resin used for waxing thread
- cobol fingers — (jargon) /koh'bol fing'grz/ Reported from Sweden, a hypothetical disease one might get from coding in COBOL. The language requires code verbose beyond all reason (see candygrammar); thus it is alleged that programming too much in COBOL causes one's fingers to wear down to stubs by the endless typing.
- cocarboxylase — thiamine pyrophosphate
- collaborators — to work, one with another; cooperate, as on a literary work: They collaborated on a novel.
- combat troops — troops who are engaged in fighting
- combinatorics — a branch of mathematics dealing with combinations and permutations
- comfortablest — Superlative form of comfortable.
- commeasurable — having the same measure or extent; commensurate.
- commensurable — having a common factor
- commensurably — In a commensurable manner; so as to be commensurable.
- comorbidities — Plural form of comorbidity.
- compromisable — Capable of being compromised.
- concelebrates — Third-person singular simple present indicative form of concelebrate.
- congress boot — a high shoe with an elastic insert in each side
- constrainable — able to be constrained