13-letter words containing t, h, i, o
- homosexuality — sexual desire or behavior directed toward a person or persons of one's own sex.
- honor society — (in a college, university, or secondary school) a student society that admits members on the basis of academic merit and, sometimes, worthwhile contributions in extracurricular activities.
- honour bright — an exclamation pledging honour
- honourability — A state or condition or being honourable.
- hoosier state — Indiana (used as a nickname).
- horatio alger — of or characteristic of the heroes in the novels of Horatio Alger, who begin life in poverty and achieve success and wealth through honesty, hard work, and virtuous behavior: the Horatio Alger story of his rise in the business world.
- horizontality — at right angles to the vertical; parallel to level ground.
- hormic theory — a theory that holds all behavior to be purposive, whether conscious or unconscious.
- horrification — That which causes horror.
- horripilation — a bristling of the hair on the skin from cold, fear, etc.; goose bumps.
- horror writer — a writer of horror fiction or horror stories
- horse gentian — any weedy North American plant of the genus Triosteum, of the honeysuckle family, especially T. perfoliatum, having stalkless leaves and purplish-brown flowers and bearing orange fruits.
- horse stinger — a dragonfly.
- horse trading — the act or fact of conducting a shrewd exchange or engaging in a horse trade; bargaining.
- horse trailer — lorry for transporting a horse
- horse-trading — to bargain or trade shrewdly.
- horticultural — the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants.
- hortus siccus — a collection of dried plants; herbarium.
- hospitability — The quality of being hospitable.
- hospital bill — the bills incurred for receiving hospital treatment
- hospital care — medical treatment provided in a hospital
- hospital case — a patient that is being, or needs to be, treated in a hospital
- hospital pass — a pass made to a team-mate who will be tackled heavily as soon as the ball is received
- hospital ship — a ship built to serve as a hospital, especially used to treat the wounded in wartime and accorded safe passage by international law.
- hospitalizing — Present participle of hospitalize.
- host-specific — capable of living solely on or in one species of host, as a parasite that infests only chickens.
- hottentot fig — a succulent plant, Mesembryanthemum edule, of southern Africa, having a capsular fruit containing edible pulp: family Aizoaceae
- house cricket — a dark brown cricket, Acheta domesticus, having a light-colored head with dark crossbands, commonly occurring throughout North America and Europe, where it may be an indoor pest.
- house painter — a person whose occupation is painting houses.
- house trailer — a trailer fitted with accommodations for sleeping, eating, washing, etc.
- house-hunting — the act of searching for a house to buy or rent
- house-trained — housebroken.
- housed string — a string of a stair (housed stair) receiving the ends of the risers or treads in a series of housings.
- housemistress — A female teacher in charge of a dormitory at a boarding school.
- housepainters — Plural form of housepainter.
- housetraining — Present participle of housetrain.
- housing start — an instance of beginning the construction of a dwelling.
- housing stock — the total number of houses, flats, etc, in an area
- how's tricks? — how are you?
- hudson strait — a strait connecting Hudson Bay and the Atlantic. 450 miles (725 km) long; 100 miles (160 km) wide.
- hunting lodge — a house or hut in the country or in the mountains where people stay on holiday when they want to go hunting
- hunting sword — a short, light saber of the 18th century, having a straight or slightly curved blade.
- hyalinization — a condition in which normal tissue deteriorates into a homogeneous, translucent material.
- hybridisation — Alternative form of hybridization.
- hybridization — to cause to produce hybrids; cross.
- hydrarthrosis — a build-up of fluid or water in the cavity of a joint, esp the knee joint
- hydroboration — (chemistry) the production or organoboranes by the addition of diborane to unsaturated organic compounds.
- hydroelectric — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- hydrogenating — Present participle of hydrogenate.
- hydrogenation — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).