18-letter words containing t, e, r, h, a, u
- thermonuclear bomb — hydrogen bomb.
- thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
- third man argument — (in the philosophy of Aristotle) the argument against the existence of Platonic Forms that since the Form of Man is itself a perfect man, a further form (the "third" man) would be required to explain this, and so ad infinitum
- three-quarter time — the meter of a musical composition having a time signature of 3/4 and three quarter notes or their equivalent in each measure.
- to be caught short — If you are caught short or are taken short, you feel a sudden strong need to urinate, especially when you cannot easily find a toilet.
- to cut the mustard — If someone does not cut the mustard, their work or their performance is not as good as it should be or as good as it is expected to be.
- to hold your peace — If you hold or keep your peace, you do not speak, even though there is something you want or ought to say.
- to meet your match — If you meet your match, you find that you are competing or fighting against someone who you cannot beat because they are as good as you, or better than you.
- to open your heart — If you open your heart or pour out your heart to someone, you tell them your most private thoughts and feelings.
- to watch your step — If someone tells you to watch your step, they are warning you to be careful about how you behave or what you say so that you do not get into trouble.
- traveller's cheque — Traveller's cheques are cheques that you buy at a bank and take with you when you travel, for example so that you can exchange them for the currency of the country that you are in.
- turk's-head cactus — a cactus, Melocactus communis, of Jamaica, having needlelike spines and a cylindrical body with a tawny-red, fezlike terminal part bearing red flowers.
- turn one's hand to — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- under one's breath — the air inhaled and exhaled in respiration.
- under the aegis of — guided or protected by
- under the jackboot — If a country or group of people is under the jackboot, they are suffering because the government is cruel and undemocratic.
- upper klamath lake — See under Klamath Lakes.
- upper palaeolithic — the latest of the three periods of the Palaeolithic, beginning about 40 000 bc and ending, in Europe, about 12 000 bc: characterized by the emergence of modern man, Homo sapiens
- ur of the chaldees — the city where Abraham was born, sometimes identified with the Sumerian city of Ur. Gen. 11:28, 31; 15:7; Neh. 9:7.
- urban homesteading — homesteading (def 2).
- warehouse capacity — the amount of storage space in a warehouse
- wave of the future — a trend or development that may influence or become a significant part of the future: Computerization is the wave of the future.
- west-southwestward — moving, bearing, facing, or situated toward the west-southwest.
- westinghouse brake — a railroad air brake operated by compressed air.
- white man's burden — the alleged duty of white colonizers to care for nonwhite indigenous subjects in their colonial possessions.