10-letter words containing n, a, p, o
- grand coup — the trumping of a trick that could have been taken by the winner's partner.
- granophyre — a fine-grained or porphyritic granitic rock with a micrographic intergrowth of the minerals of the groundmass.
- grapestone — the seed of a grape.
- green soap — a soap made chiefly from potassium hydroxide and linseed oil, used in treating some skin diseases.
- ground pea — peanut.
- gymnoplast — a mass of protoplasm without an enclosing wall.
- gynephobia — an abnormal fear of women.
- gynophobia — Extreme or irrational fear of women or of the female.
- half-pound — a unit of weight equal to 8 ounces avoirdupois (0.227 kilogram) or 6 ounces troy or apothecaries' weight (0.187 kilogram).
- handphones — Plural form of handphone.
- haplobiont — an organism, esp a plant, that exists in either the diploid form or the haploid form (but never alternates between these forms) during its life cycle
- harpooneer — A harpooner.
- harpooning — Present participle of harpoon.
- headphones — Audio. a headset designed for use with a stereo system.
- hemianopia — any of several conditions in which there is blindness in half of the visual field, involving one or both eyes.
- hemianopic — having or relating to hemianopia
- heptagonal — having seven sides or angles.
- heptameron — A literary work whose action covers a period of seven days.
- heptathlon — an athletic contest for women comprising seven different track-and-field events and won by the contestant amassing the highest total score.
- heptatonic — (of a musical scale) comprising seven notes
- hierophant — (in ancient Greece) an official expounder of rites of worship and sacrifice.
- hierophany — A physical manifestation of the holy or sacred, serving as a spiritual eidolon for emulation or worship.
- hippomanes — (formerly) a substance found on the forehead of a newborn foal or obtained from a mare in foal, thought to act as an aphrodisiac
- hippomania — A passion for horses.
- hispaniola — an island in the West Indies, comprising the republic of Haiti and the Dominican Republic. 29,843 sq. mi. (77,293 sq. km).
- hog peanut — a twining plant, Amphicarpaea bracteata, of the legume family, bearing pods that ripen in or on the ground.
- holdup man — a person who commits an armed robbery.
- homopteran — homopterous.
- honor camp — a prison work camp operating on an honor system.
- hoop snake — any of several harmless snakes, as the mud snake and rainbow snake, fabled to take its tail in its mouth and roll along like a hoop.
- hop garden — a field of hops
- hopsacking — bagging made chiefly of hemp and jute.
- houseplant — an ornamental plant that is grown indoors or adapts well to indoor culture.
- hyalophane — a variety of orthoclase in which some of the potassium is replaced by barium.
- hydrophane — a partly translucent variety of opal, which becomes more translucent or transparent when immersed in water.
- hydroplane — a seaplane.
- hygiaphone — a glass screen through which an employee may speak to members of the public, eg at a ticket office
- hypaethron — a part of a building or court which is open to the sky
- hyperbaton — the use, especially for emphasis, of a word order other than the expected or usual one, as in “Bird thou never wert.”.
- hypernovae — Plural form of hypernova.
- hyperpnoea — abnormally deep or rapid respiration.
- hypertonia — increased rigidity, tension, and spasticity of the muscles.
- hyphenator — One who, or that which, hyphenates.
- hypnagogia — (medicine) A condition characterized by dreamlike auditory, visual, or tactile sensations when half-awake.
- hypnagogic — of or relating to drowsiness.
- hypnodrama — the acting out of a traumatic experience, under hypnosis, by a person undergoing psychotherapy.
- hypnograph — an instrument that measures activities of the human body during sleep.
- hypnopedia — sleep learning.
- hypoadenia — a deficiency of glandular activity.
- hypocapnia — (medicine) A state of reduced carbon dioxide in the blood.