13-letter words containing a, u, s, o
- giant sequoia — big tree.
- give pause to — to cause to hesitate
- glamour stock — a popular stock that rises quickly or continuously in price and attracts large numbers of investors.
- glaucous gull — a large white and pale-gray gull, Latus hyperboreus, of Arctic regions.
- glucuronidase — an enzyme that catalyzes glucuronide hydrolysis
- go great guns — to act or function with great speed, intensity, etc
- godwin-austen — Also called Godwin Austen [god-win aw-stin] /ˈgɒd wɪn ˈɔ stɪn/ (Show IPA), Dapsang [duh p-suhng] /dəpˈsʌŋ/ (Show IPA). a mountain in N Kashmir, in the Karakoram range: second highest peak in the world. 28,250 feet (8611 meters).
- good gracious — Some people say good gracious or goodness gracious in order to express surprise or annoyance.
- gourmandizers — Plural form of gourmandizer.
- grain sorghum — any of several varieties of sorghum, as durra or milo, having starchy seeds, grown for grain and forage.
- graminicolous — (esp of parasitic fungi) living on grass
- graminivorous — feeding or subsisting on grass: a graminivorous bird.
- grandiloquous — grandiloquent
- granular snow — a rare form of opaque precipitation consisting of very tiny ice crystals
- granuliferous — full of granules, or producing granules
- granulomatous — an inflammatory tumor or growth composed of granulation tissue.
- grass sorghum — any of several varieties of sorghum, as Sudan grass, grown for pasturage and hay.
- guesstimation — (pejorative) An estimation made without good justification and often biased.
- gulf of gabès — an inlet of the Mediterranean on the E coast of Tunisia
- gulf of saros — an inlet of the Aegean in NW Turkey, north of the Gallipoli Peninsula. Length: 59 km (37 miles). Width: 35 km (22 miles)
- gulf of sidra — a wide inlet of the Mediterranean on the N coast of Libya
- gulf-of-saros — Gulf of, an inlet of the Aegean, N of the Gallipoli Peninsula. 37 miles (60 km) long; 22 miles (35 km) wide.
- habeas corpus — a writ requiring a person to be brought before a judge or court, especially for investigation of a restraint of the person's liberty, used as a protection against illegal imprisonment.
- haematogenous — producing blood
- halfway house — an inn or stopping place situated approximately midway between two places on a road.
- hallucinogens — Plural form of hallucinogen.
- harbourmaster — (British, Canada, nautical) An official responsible for the enforcement of regulations in a port.
- hard shoulder — The hard shoulder is the area at the side of a motorway or other road where you are allowed to stop if your car breaks down.
- harry hotspur — the nickname of Sir Henry Percy
- hart's-tongue — a fern, Phyllitis scolopendrium, having long, leathery, wavy-edged leaves.
- haruspication — the use of animal entrails for divination
- harvest mouse — an Old World field mouse, Micromys minutus, that builds a spherical nest among the stems of grains and other plants.
- hash function — (programming) A hash coding function which assigns a data item distinguished by some "key" into one of a number of possible "hash buckets" in a hash table. The hash function is usually combined with another more precise function. For example a program might take a string of letters and put it in one of twenty six lists depending on its first letter. Ideally, a hash function should distribute items evenly between the buckets to reduce the number of hash collisions. If, for example, the strings were names beginning with "Mr.", "Miss" or "Mrs." then taking the first letter would be a very poor hash function because all names would hash the same.
- hazardousness — The condition of being hazardous.
- he's your man — he's the person needed (for a particular task, role, job, etc)
- heart surgeon — a surgeon who specializes in performing operations on the heart
- hematophagous — feeding on blood, as the vampire bat.
- heterocarpous — (of a plant) producing more than one type of fruit
- heterosexuals — Plural form of heterosexual.
- heusler alloy — any of various alloys of manganese and other nonferromagnetic metals that exhibit ferromagnetism.
- hexadactylous — hexadactylic
- hilariousness — The characteristic of being hilarious; hilarity.
- hippo zarytus — ancient name of Bizerte.
- holy saturday — the Saturday in Holy Week.
- holy thursday — Ascension Day.
- homosexualism — A sexual attraction to (or sexual relations with) individuals of the same sex.
- homosexuality — sexual desire or behavior directed toward a person or persons of one's own sex.
- honoris causa — for the sake of honour
- hothouse lamb — a lamb born in the fall or early winter, usually reared indoors, specially fed, and marketed when from 9 to 16 weeks of age.
- house journal — a publication produced for the employees of a company or organization in order to keep them updated with news and events