18-letter words containing o, b, e, a, h, i
- johanan ben zakkai — died a.d. c80, Palestinian rabbi who was a leading Pharisaic teacher: disciple of Hillel.
- knight of the bath — a member of a knightly order founded by George I of England in 1725.
- mohammed ibn-kasim — flourished early 8th century a.d, Muslim conqueror of the Sind region in India.
- mozambique channel — a channel in SE Africa, between Mozambique and Madagascar. 950 miles (1530 km) long; 250–550 miles (400–885 km) wide.
- nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
- neighborhood watch — a neighborhood surveillance program or group in which residents keep watch over one another's houses, patrol the streets, etc., in an attempt to prevent crime.
- nonachlorobiphenyl — (organic compound) Either of three isomers of the polychlorinated biphenyl containing nine chlorine atoms.
- noninterchangeable — That cannot be interchanged with another.
- octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
- optical brightener — an additive that dyes and brightens fabric or paper
- price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.
- probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
- protease inhibitor — a drug that inhibits the action of protease, especially any of a class of antiviral drugs that prevent the cleavage and replication of HIV proteins.
- rheims-douay bible — Douay Bible.
- ride a hobby horse — an activity or interest pursued for pleasure or relaxation and not as a main occupation: Her hobbies include stamp-collecting and woodcarving.
- rosebay willowherb — a perennial onagraceous plant, Chamerion (formerly Epilobium) angustifolium, that has spikes of deep pink flowers and is widespread in open places throughout N temperate regions
- saint john's bread — carob (def 2).
- schofield barracks — a town on central Oahu, in central Hawaii.
- scottish blackface — a common breed of hardy mountain sheep having horns and a black face, kept chiefly on the mainland of Scotland
- september holidays — a period of time in September when people do not have to go to school, college or work
- sindbad the sailor — (in The Arabian Nights' Entertainments), a wealthy citizen of Baghdad who relates the adventures of his seven wonderful voyages.
- take a shine to sb — If you say that someone has taken a shine to another person, you mean that he or she liked them very much at their first meeting.
- the bird has flown — the person in question has fled or escaped
- the black mountain — a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft)
- tick all the boxes — to satisfy all of the apparent requirements for success
- to be said for sth — If you say there is a lot to be said for something, you mean you think it has a lot of good qualities or aspects.
- to spill the beans — If you spill the beans, you tell someone something that people have been trying to keep secret.
- urban homesteading — homesteading (def 2).
- water on the brain — hydrocephalus.
- westinghouse brake — a railroad air brake operated by compressed air.
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.