12-letter words containing a, s, u
- harbour dues — the fees or charges paid for using a harbour
- harbour seal — a common earless seal, Phoca vitulina, that is greyish-black with paler markings: found off the coasts of North America, N Europe, and NE Asia
- hard-surface — to make the surface of (something) hard or firm, as by compacting or paving it: to hard-surface a parking area.
- harmoniously — marked by agreement in feeling, attitude, or action: a harmonious group.
- harmoniumist — a person who plays a harmonium
- harquebusier — a soldier armed with a harquebus.
- harrisonburg — a city in N Virginia.
- harum-scarum — reckless; rash; irresponsible: He had a harum-scarum youth.
- has no equal — If you say that someone or something has no equal, you think that there is nothing that is as good as them or that reaches the same standard.
- haussmannize — to rebuild in a similar fashion as Haussmann rebuilt Paris
- haute-savoie — a department in E France. 1775 sq. mi. (4595 sq. km). Capital: Annecy.
- hautes-alpes — a department in SE France. 2179 sq. mi. (5645 sq. km). Capital: Gap.
- hazel grouse — a European woodland grouse, Tetrastes bonasia, somewhat resembling the North American ruffed grouse.
- headquarters — a center of operations, as of the police or a business, from which orders are issued; the chief administrative office of an organization: The operatives were always in touch with headquarters.
- hearsay rule — the rule making hearsay evidence inadmissible.
- heartfulness — The state or quality of being heartful.
- helianthuses — Plural form of helianthus.
- heliogabalus — (Varius Avitus Bassianus"Marcus Aurelius Antoninus") a.d. 204–222, Roman emperor 218–222.
- helium flash — the explosive burning of helium in the case of a star of low mass that occurs when the core is so dense that the matter has become degenerate. The burning causes a rapid rise in temperature until it is so high that the gas ceases to be degenerate, after which there is a rapid expansion
- hellaciously — In a hellacious manner.
- hematogenous — originating in the blood.
- hepadnavirus — Any member of the virus family Hepadnaviridae, capable of causing liver infections in humans and animals.
- hepatogenous — originating in the liver
- hesse-nassau — a former state in W Germany, now part of Hesse.
- heterauxesis — an unequal or asymmetrical growth of cells, parts of plants or animals
- heterogamous — Genetics. having unlike gametes, or reproducing by the union of such gametes (opposed to isogamous).
- heteroousian — a person who believes the Father and the Son to be unlike in substance or essence; an Arian (opposed to Homoousian).
- heterosexual — of, relating to, or exhibiting heterosexuality.
- hindquarters — the posterior end of a halved carcass of beef, lamb, etc., sectioned usually between the twelfth and thirteenth ribs.
- hippophagous — eating horse meat
- hippopotamus — a large herbivorous mammal, Hippopotamus amphibius, having a thick hairless body, short legs, and a large head and muzzle, found in and near the rivers, lakes, etc., of Africa, and able to remain under water for a considerable time.
- hohenstaufen — a member of the royal family that ruled in Germany from 1138 to 1208 and from 1215 to 1254, and in Sicily from 1194 to 1266.
- hoisin sauce — a thick, sweet, spicy condiment containing soybeans, sugar, garlic, and chili peppers, used in cooking or as an accompaniment to meat, fish, or poultry, especially Peking duck.
- holothurians — Plural form of holothurian.
- homodynamous — (biology) Pertaining to, or involving, homodynamy.
- homosexually — In a homosexual way.
- horse around — a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
- horse guards — the mounted squadrons supplied by the Household Cavalry for ceremonial duties
- horse manure — horse's excrement
- house arrest — confinement of an arrested person to his or her residence or to a public place, as a hospital, instead of in a jail: He was under house arrest until the day of his trial.
- house league — a sports league in which the members of all teams belong to the same organization, school, or company
- house martin — a small European swallow, Delichon urbica, that builds its nest under the eaves of houses.
- house wizard — (Probably from ad-agency tradetalk, "house freak") A hacker occupying a technical-specialist, R&D, or systems position at a commercial shop. A really effective house wizard can have influence out of all proportion to his/her ostensible rank and still not have to wear a suit. Used especially of Unix wizards. The term "house guru" is equivalent.
- housebreaker — a person who breaks into and enters a house with a felonious intent.
- housecleaner — Someone employed to clean a house.
- housefathers — Plural form of housefather.
- househusband — a man whose spouse works and who stays home to manage their household.
- housemasters — Plural form of housemaster.
- housepainter — A professional painter of houses.
- housetrained — Simple past tense and past participle of housetrain.