Letter: h
- hybrid stop, English horn, bassoon, cello, clarinet, clarion, cornet, diapason, mixture, oboe, octave, organ stop, piccolo, principal, rank, reed stop
- hybrid, Cape Coloured, Eurasian, bastard, blend, combination, composite, compound, contamination, cross, cross-bred, cross-breed, crossed, half blood, half-bred, half-breed
- hybridism, blend, crossing, hybrid, miscegenation, portmanteau word
- hydrant, acid, automatic sprinkler, carbon tetrachloride, carbon-dioxide foam, cock, deck gun, deluge set, extinguisher, fire apparatus, fire engine, fire hose, fire hydrant, foam, foam extinguisher, gate
- hydrate, acidify, alkalise, borate, carbonate, catalyse, chemical, chlorinate, electrolyse, ferment, hydrogenate, hydroxylate, nitrate, oxidise, polymerize, reduce
- hydrated, aquatic, liquid, plashy, sloppy, splashy, watery
- hydraulic power, electric power, impulse, nuclear power, propulsion, rocket power, thrust
- hydraulic tailgate, crab, crane, derrick, hoist, jack, lever, lift, lifter, tackle, windlass
- hydraulic, aquatic, liquid, plashy, sloppy, splashy, watery
- hydraulic-fill dam, backstop, bamboo curtain, bank, bar, barrage, barrier, boom, breakwater, breastwork, buffer, bulkhead, bulwark, dam, defence, dike
- hydraulics, beverage, blood, drink, fluid, fluid extract, fluid mechanics, hydrodynamics, hydrology, hydromechanics, hydrometry, hydrostatics, juice, latex, liquid, liquid extract
- hydrodynamics, aerodynamics, dynamics, fluid dynamics, hydraulics, hydrology, hydromechanics, hydrometry, hydrostatics, kinematics, kinetics, magnetohydrodynamics, thermodynamics, zoodynamics
- hydroelectric power, electric power, impulse, nuclear power, propulsion, rocket power, thrust, wattage
- hydroelectric, battery-powered, electric, electric-powered, electrified, electrifying, electrochemical, electrodynamic, electromechanical, electromotive, electrostatic, galvanic, galvanometric, photoelectric, piezoelectric, static
- hydrofoil, boat, canoe, cruiser, ferry, freighter, ship, tanker
- hydrogen bomb, A-bomb, atomic bomb, atomic warhead, fusion bomb, nuclear warhead, plutonium bomb, thermonuclear bomb, thermonuclear warhead
- hydrogen peroxide, alcohol, antiseptic, bleach, iodine, peroxide
- hydrogen, ammonia, carbon dioxide, gas, nitrogen, oxygen, silver
- hydrogenate, acidify, aerate, alkalise, atomize, borate, carbonate, catalyse, chemical, chlorinate, distil, electrolyse, emit, etherize, evaporate, exhale
- hydrogenated fat, ester, fat, grease, lipid, mineral oil, tallow, vegetable oil
- hydrogenation, carbonation, catalysis, electrolysis, ferment, fermentation, nitration, oxidation, polymerization, reduction, working
- hydrology, hydraulics, hydrodynamics, hydromechanics, hydrostatics
- hydrolysis, catalysis, catalyst, decay, dissociation, fission, splitting
- hydromechanics, celestial mechanics, electromechanics, fluid mechanics, hydraulics, hydrodynamics, hydrology, hydrometry, hydrostatics, leverage, mechanics, quantum mechanics, statistical mechanics, wave mechanics, zoomechanics
- hydrometry, hydraulics, hydrodynamics, hydromechanics, hydrostatics
- hydrophobia, German measles, acute articular rheumatism, ague, alkali disease, anthrax, bacillary dysentery, bastard measles, bighead, black death, black fever, black quarter, blackleg, blind staggers, bloody flux, broken wind
- hydroplane, aeroplane, airlift, amphibian, balloon, be airborne, clipper, cruise, drift, ferry, flit, fly, glide, hop, hover, jet
- hydroponics, agrarianism, agricultural geology, agriculture, agronomics, agronomy, botany, contour farming, cultivation, culture, dirt farming, dry farming, farm economy, farming, fruit farming, grain farming
- hydrosphere, aqua, big drink, blue water, drink, drinking water, ground water, hard water, head, heavy water, high sea, high seas, main, main sea, mineral water, ocean
- hydrostatics, aerial photography, aerodynamics, aeronautical meteorology, aerospace research, aviation technology, avionics, climatology, hydraulics, hydrodynamics, hydrology, hydromechanics, hydrometry, kinematics, kinetics, meteorology
