15-letter words containing t, h, o
- bedsheet ballot — a very long, involved paper ballot
- beet leafhopper — a small leafhopper (Circulifer tenellus) that transmits a very destructive virus to sugar beets
- before the fact — before the commission of the offence
- before the mast — as an apprentice seaman
- before the wind — with the wind coming from astern
- bello horizonte — a city in SE Brazil.
- beyond the pale — If you think that someone's actions or behaviour are not acceptable, you can say that they are beyond the pale.
- big bang theory — In astronomy the big bang theory is a theory that suggests that the universe was created as a result of an extremely large explosion.
- billings method — a natural method of birth control that involves examining the colour and viscosity of the cervical mucus to discover when ovulation is occurring
- biogeochemistry — the science of biological, chemical, and geological aspects of the environment
- biomathematical — relating to biomathematics
- biopsychologist — a field of psychology that deals with the effects of biological factors on behavior.
- biostratigraphy — the examination of the ages of rock strata by using fossils
- bit on the side — an extramarital affair
- biting housefly — a two-winged fly, Stomoxys calcitrans, having the mouthparts adapted for biting, and commonly a household and stable pest.
- bloody butchers — a hardy plant, Trillium sessile, common from New York to Georgia and westward, having stalkless, purple or green flowers.
- blotch printing — a fabric-printing method in which the ground color is transferred from the cylinder and the motif retains the original hue of the cloth.
- board of health — an agency with responsibility for health in state, country, etc
- boating holiday — a holiday spent sailing or travelling in a canal boat, cruiser, etc
- bohemian forest — a mountain range between the SW Czech Republic and SE Germany. Highest peak: Arber, 1457 m (4780 ft)
- boil-in-the-bag — (of food) able to be boiled in a sealed bag until ready to eat
- booster cushion — an extra seat or cushion placed on an existing seat for a child to sit on in a car
- borscht circuit — summer resort hotels in the Catskills and White Mountains, where entertainment is provided for the guests
- boustrophedonic — of or relating to lines written in opposite directions
- box chronometer — a ship's chronometer, supported on gimbals in a wooden box
- box the compass — to name the compass points in order
- boys' night out — an evening spent outside of the home by a group of men
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- brachystomatous — having a short proboscis, as certain insects.
- branchiostegous — branchiostegal.
- breach of faith — a violation of good faith, confidence, or trust; betrayal: To abandon your friends now would be a breach of faith.
- breach of trust — a violation of duty by a trustee or any other person in a fiduciary position
- break the mould — If you say that someone breaks the mould, you mean that they do completely different things from what has been done before or from what is usually done.
- bring to a head — to bring or be brought to a crisis
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- bristol fashion — clean and neat, with newly painted and scrubbed surfaces, brass polished, etc
- british council — an organization founded (1934) to extend the influence of British culture and education throughout the world
- british telecom — the popular name for British Telecommunications Group plc, the dominant fixed line telecommunications and broadband internet provider in the United Kingdom
- bronchial tubes — the bronchi or their smaller divisions
- brother-in-arms — a fellow soldier or comrade in a shared struggle
- brown-tail moth — a white moth, Nygmia phaerrhoea, having a brown tuft at the end of the abdomen, the larvae of which feed on the foliage of various shade and fruit trees.
- bullock's heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- bullock's-heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- bun in the oven — in the womb
- butcher's-broom — a liliaceous evergreen shrub, Ruscus aculeatus, that has stiff prickle-tipped flattened green stems, which resemble and function as true leaves. The plant was formerly used for making brooms
- button mushroom — Button mushrooms are small mushrooms used in cooking.
- caffe macchiato — a hot beverage consisting of espresso and a small amount of foamed milk.
- call-out charge — a set amount charged for a repairman to come to one's house, or to a broken-down vehicle, which is added to the cost of the actual repair
- calydonian hunt — the pursuit by Meleager, Atalanta, and others of a savage boar (Calydonian boar) sent by Artemis to lay waste to Calydon.
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant