12-letter words containing h, a, k, o
- harold stark — Harold Raynsford [reynz-ferd] /ˈreɪnz fərd/ (Show IPA), 1880–1972, U.S. admiral.
- hash cookies — biscuits containing cannabis
- heart of oak — a brave person
- heaven knows — You can say 'Heaven knows' to emphasize that you do not know something, or that you find something very surprising.
- hello packet — (networking, communications) An OSPF packet sent periodically on each network interface, real or virtual, to discover and test connections to neighbours. Hello packets are multicast on physical networks capable of multicasting or broadcasting to enable dynamic router discovery. They include the parameters that routers connected to a common network must agree on. Hello packets increase network resilience by, e.g., allowing a router to establish a secondary connection when a primary connection fails.
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- heterokaryon — a cell containing two or more nuclei of differing genetic constitutions.
- heterokontan — of or relating to a heterokont
- higashiosaka — a city on S Honshu, in Japan, W of Osaka.
- hkakabo razi — the highest peak in Myanmar, in Kachin state, in the N. 19,294 feet (5881 meters).
- hockey skate — a tubular ice skate having a shorter blade than a racing skate and often having a reinforced shoe for protection.
- holding tank — a tank for the temporary storage of a substance.
- holidaymaker — vacationer.
- holkar state — a former state of central India, ruled by the Holkar dynasty of Maratha rulers of Indore (18th century until 1947)
- holkham hall — a Palladian mansion near Wells in Norfolk: built 1734–59 by William Kent for Thomas Coke
- holoplankton — plankton that spend their entire life cycle as free-swimming organisms (opposed to hemiplankton).
- home banking — a system whereby a person at home or in an office can use a computer with a modem to call up information from a bank or to transfer funds electronically
- hook and eye — a two-piece clothes fastener, usually of metal, consisting of a hook that catches onto a loop or bar.
- horsebreaker — One who trains, or breaks in, horses.
- housebreaker — a person who breaks into and enters a house with a felonious intent.
- hydrocracker — a high-pressure processing unit used for hydrocracking.
- hypokalaemia — Alternative form of hypokalemia.
- jackson hole — a valley in NW Wyoming, near the Teton Range: wildlife preserve.
- john hancock — Herbert Jeffrey ("Herbie") born 1940, U.S. jazz pianist and composer.
- kachina doll — a Hopi Indian doll carved from cottonwood root in representation of a kachina and given as a gift to a child or used as a household decoration.
- kaleidophone — an instrument, invented by Professor Charles Wheatstone (1802-1875), consisting of a light on a vibrating rod with a reflecting knob for exhibiting the effect of sound waves
- kashmir goat — one of a long-haired breed of goat raised in Tibet and the higher elevations of China, the Indian subcontinent, Afghanistan, and Turkey for its meat, milk, and cashmere wool.
- katamorphism — metamorphism at or near the earth's surface: breaks down complex minerals into simpler ones.
- katharevousa — The purist form of modern Greek used in traditional literary writing, as opposed to the form that is spoken and used in everyday writing (called demotic).
- katharometer — (science) A device used for analyzing gas mixtures by measuring their thermal conductivity.
- keratohyalin — (biology) A protein structure found in granules in the stratum granulosum of the epidermis, which may be involved in keratinization, and in Hassall corpuscles in the thymus.
- keraunograph — an instrument for recording thunderstorms by detecting the radio waves generated
- kinesophobia — Fear of movement.
- kinetography — a camera for taking pictures for a kinetoscope.
- kingdom hall — a meeting place of Jehovah's Witnesses for religious services.
- kitchen soap — heavy-duty soap intended for use in the kitchen
- kittikachorn — Thanom [thah-nom] /θɑˈnɒm/ (Show IPA), 1911–2004, Thai army officer and statesman: premier 1963–73.
- kurchatovium — (chemistry) A rejected name for rutherfordium.
- loansharking — the practice of lending money at excessive rates of interest.
- machtpolitik — power politics
- mackintoshes — Plural form of mackintosh.
- make history — do sth of great significance
- make much of — great in quantity, measure, or degree: too much cake.
- make whoopee — make whoopee, to engage in uproarious merrymaking.
- manuka honey — honey from the nectar of the manuka tree, often used for medicinal purposes; known as active manuka honey if it has a UMF rating of over 10.
- markov chain — a Markov process restricted to discrete random events or to discontinuous time sequences.
- mother-naked — stark naked; as naked as when born.
- nakhon sawan — a city in W central Thailand, on the Chao Phraya River.
- no thanks to — to express gratitude, appreciation, or acknowledgment to: She thanked them for their hospitality.
- noam chomsky — (Avram) Noam [nohm,, noh-uh m] /noʊm,, ˈnoʊ əm/ (Show IPA), born 1928, U.S. linguist, educator, and political activist.