1.  The power of water employed to move machinery, etc. [1913 Webster]

2.  A fall of water which may be used to drive machinery; a site for a water mill; a water privilege. [1913 Webster]

N  power, potency, potentiality, jiva, puissance, might, force, energy, dint, right hand, right arm, ascendency, sway, control, prepotency, prepollence, almightiness, omnipotence, authority, strength, ability, ableness, competency, efficacy, efficiency, productivity, expertise (skill), validity, cogency, enablement, vantage ground, influence, pressure, conductivity, elasticity, gravity, electricity, magnetism, galvanism, voltaic electricity, voltaism, electromagnetism, atomic power, nuclear power, thermonuclear power, fuel cell, hydraulic power, water power, hydroelectric power, solar power, solar energy, solar panels, tidal power, wind power, attraction, vis inertiae, vis mortua, vis viva, potential energy, dynamic energy, dynamic friction, dynamic suction, live circuit, live rail, live wire, capability, capacity, quid valeant humeri quid ferre recusent, faculty, quality, attribute, endowment, virtue, gift, property, qualification, susceptibility, powerful, puissant, potential, capable, able, equal to, up to, cogent, valid, efficient, productive, effective, effectual, efficacious, adequate, competent, multipotent, plenipotent, omnipotent, almighty, forcible, (energetic), influential, productive, powerfully, by virtue of, by dint of, a toute force, dos moi pou sto kai kino ten gen, eripuit coelo fulmen sceptrumque tyrannis, fortis cadere cedere non potest.

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feather, water feather-foil, water fennel, water fern, water filter, water finder, water flag, water flannel, water flaxseed, water flea, water flounder, water fountain, water fox, water frame, water furrow, water gage, water gall, water gang, water gap, water gas, water gate, water gauge, water gavel, water germander, water gilding, water gillyflower, water glass, water god, water grass, water gruel, water gum, water gun, water hammer, water hare, water hazard, water heater, water hemlock, water hemp, water hen, water hickory, water hog, water hole, water horehound, water horsetail, water hyacinth, water ice, water inch, water jacket, water joint, water jug, water jump, water junket, water laverock, water leg, water lemon, water lettuce, water level, water lily, water lime, water line, water lizard, water lobelia, water locust, water main, water mat, water meadow, water measure, water measurer, water meter, water milfoil, water mill, water mint, water mite, water moccasin, water mold, water mole, water monitor, water monkey, water motor, water mouse, water murrain, water newt, water nymph, water oak, water oat, water of crystallisation, water of crystallization, water of hydration, water on the knee, water opossum, water orchid, water ordeal, water ousel, water ouzel, water ox, water parsnip, water parting, water partridge, water pennywort, water pepper, water pheasant, water piet, water pig, water pill, water pillar, water pimpernel, water pipe, water pistol, water pitcher, water plant, water plantain, water plate, water poa, water pocket, water poise, water pollution, water polo, water pore, water pox, water privilege, water program, water project, water pump, water purslane, water qualm, water rabbit, water radish, water rail, water ram, water rat, water rate, water rattle, water rattler, water rice, water right, water rocket, water sail, water sapphire, water scooter, water scorpion, water screw, water shamrock, water shield, water shrew, water skater, water ski, water skin, water snail, water snake, water softener, water soldier, water souchy, water spaniel, water sparrow, water speedwell, water spider, water spinner, water spirit, water sport, water sprite, water star grass, water starwort, water stoma, water strider, water supply, water system, water tabby, water table, water tank, water tap, water telescope, water tender, water thermometer, water thief, water thrush, water thyme, water tick, water tiger, water torch, water tower, water travel, water tree, water trefoil, water trumpet, water tu tuy'8are, water tu twist, water tube, water tupelo, water turkey, water under the bridge, water vapor, water vapour, water vascular system, water vine, water violet, water viper, water vole, water waggon, water wagon, water wagtail, water way, water wheel, water willow, water wing, water wings, water witch, water yam, well water, white water, wild water lemon, will power, wind power, world power, yellow water flag, yellow water lily