bell, board, bomb, cap, cell, chuck, chute, clamp, claw, coil, comb, die, disc, disk, drive, drogue, dump, earth, fae, fan, fault, flag, flare, flaw, foil, fuse, gate, grab, ground, guard, helm, hoist, hook, horn, jack, jaw, jaws, key, last, lens, lense, lift, light, load, loop, mike, mine, mouse, mute, pick, plug, pole, port, pull, pump, quench, ratch, ride, safe, seal, shunt, sieve, sift, spike, splint, spool, spring, stack, stamp, stop, store, strain, swing, switch, tape, trap, trick, tube, turn, valve, vane, vise, winch, wind, works

access, airfoil, air spring, alarm, anchor, anode, backup, ballast, beeper, bellows, bench vise, birdcall, blower, bombsight, bomb rack, breaker, breather, buffer, bumper, buzzer, bypass, car bomb, car horn, cathode, changer, charger, chassis, circuit, condom, console, constraint, corer, coupler, coupling, crested, crimper, crusher, curler, cutoff, damper, davit, deaf-aid, defect, defuse, depth bomb, depth charge, dicer, diestock, disc pack, disk pack, display, dongle, driver, drop forge, drop press, duplex, faceplate, fail-safe, fast one, fender, field lens, filter, finder, firework, flasher, foghorn, gadget, gearshift, gearstick, gismo, gizmo, grating, groover, heater, holder, hookup, hooter, imprint, jack up, joystick, kerr cell, keyboard, keypad, knocker, laser, launcher, lighter, light source, logo, machine, magnet, mag tape, mainspring, male plug, modem, mouthpiece, muffler, nailhead, naked, nest egg, offload, otis, pager, panel, peeler, petard, phase i, pickup, piston, plectron, plectrum, plunger, printer, prism, prompter, pullback, rachet, racon, rapper, ratchet, relay, remote, reset, restraint, roller, router, rubber, runner, safety, scanner, schnorchel, schnorkel, scratcher, scuba, seal bomb, seeder, seeker, sensor, shifter, shoehorn, shoetree, shoe bomb, shredder, shutter, siren, slapstick, snorkel, snowshoe, socket, sounder, spark plug, splicer, spreader, sprinkler, stator, stemmer, stencil, stoker, stopcock, storage, stretcher, striker, stylus, support, surface, sweatbox, sweeper, take-up, teaser, tieback, tilter, timepiece, tone arm, trackball, treadmill, trigger, turncock, union, viewer, warmer, washboard, wheelwork, whistle, widget, winder, windlass, wind up, wind vane, wiper, wiring, workings, zapper, zero

adapter, adaptor, aerial, aerofoil, air cushion, alignment, analog, analogue, antenna, aperture, appliance, applier, aqua-lung, aqualung, aspergill, autoclave, autocue, battery, biprism, broadcaster, buffer store, camouflage, catapult, cobbler's last, comforter, compressor, condenser, conductor, contraption, contrivance, control board, convenience, converter, convertor, corrective, cryptograph, dampener, dart thrower, deflector, delicate, depressor, detector, diaphragm, diffuser, diffusor, digital, digitize, doorknocker, doubler, drop hammer, ear trumpet, escapement, exploding, explosive, gas fixture, gear lever, ground tackle, hair curler, harpoon log, hearing aid, hydrofoil, igniter, ignitor, inductance, inductor, input file, instructions, instrument, interface, invention, lens system, letter bomb, light ballast, linear, line printer, logotype, megaphone, memory, microphone, mnemonic, moistener, monitor, motor horn, noisemaker, output file, overhead, override, pacemaker, package bomb, pantograph, paper feed, parachute, parcel bomb, pessary, photostat, pickup arm, power pack, preventive, principle, projector, propeller, propellor, rationale, reactor, recording, reflecting, reflector, register, repeater, resistance, resistor, safety catch, safety lock, shooting stick, sidewinder, signal flag, silencer, sparking plug, spear thrower, stator coil, straightener, strengthener, suppresser, suppressor, synchroflash, system clock, tea-strainer, teething ring, terminal, thermistor, throwing board, throwing stick, timekeeper, torpedo, trade secret, transducer, transformer, transistor, transponder, unaided, vacuum tube, vibrator, viewfinder, view finder, weathervane, weather vane, whaling gun, wiper blade

afterburner, alarm system, algometer, applicator, auto-changer, autofocus, autopilot, baby's dummy, billiard marker, breathalyser, breathalyzer, breathing device, breathing machine, buffer storage, burglar alarm, can opener, capacitance, capacitor, carpet sweeper, cervical cap, circuit breaker, clinical test, coelostat, collimator, computer mouse, contraception, contraceptive, control panel, control surface, copyholder, demagnetise, demagnetize, detonator, device driver, digitiser, digitizer, distributer, distributor, ecphonesis, electric cell, electric switch, electrograph, electron tube, elevator, energiser, energizer, epiplexis, exclamation, exercise bike, exercycle, extinguisher, generator, heat exchanger, holding device, image scanner, indicator, inhalator, innovation, input data, input device, interrupter, kinetoscope, lifting device, magnetic disc, magnetic disk, magnetic stripe, magnetic tape, mechanism, memory board, mine detector, multiplexer, nicol prism, organiser, organizer, oscillograph, output routine, oxygen mask, pacifier, polariscope, power takeoff, preventative, prophylactic, pyrotechnic, radar beacon, record changer, rectifier, reinforcement, remote control, repetition, respirator, restorative, rifle grenade, robot pilot, rochon prism, rocket launcher, safety device, security, simple machine, snorkel breather, solar array, solar panel, spark arrester, speaking trumpet, spike arrester, spike suppressor, stabiliser, stabilizer, stereoscope, steriliser, sterilizer, storage device, supply chamber, surge protector, surge suppressor, tcp/ip, tin opener, trace detector, transistorise, transistorised, transistorize, transistorized, variable, ventilator, voting machine, warning device, water cooler, wimshurst machine, windscreen wiper, windshield wiper

acoustic device, acoustic storage, agglomerator, answering machine, asphyxiator, attenuator, automobile horn, battery charger, birth control device, book of instructions, characteristic, clinical trial, command overhead, computer backup, computer keyboard, computer storage, defibrillator, dental appliance, diffraction grating, digital scanner, display adapter, display adaptor, elastic device, electrical fuse, electrical shunt, electrical switch, electric circuit, execution speed, exercise device, explosive device, external storage, instrument panel, junction transistor, lightning arrester, logic element, memory device, optical device, optical maser, optical prism, panoramic sight, planetarium, polarimeter, preclinical phase, preclinical test, sensing element, signaling device, solar battery, thermal resistor, thermionic tube, thermionic valve, wollaston prism

automatic pilot, auxiliary storage, breathing apparatus, camera lucida, characteristic curve, computer memory, contraceptive device, contraceptive method, data input device, design criteria, detonating device, electrical circuit, electrical device, electrical relay, electric battery, electronic device, elisha graves otis, fire extinguisher, instruction manual, mechanical device, monitoring device, preclinical trial, prophylactic device, secondary storage, security measures, security system, transmitting aerial

artificial pacemaker, catalytic converter, characterisic function, computer architecture, contraceptive diaphragm, device characteristic, electrical condenser, electromechanical, electronic transistor, electrostatic machine, intrauterine device, nuclear terrorism, operating instructions, perpetual calendar, personal organiser, personal organizer, source of illumination, thermionic vacuum tube, van de graaff generator, visual display unit

command processing overhead, electrical distributor, graphical user interface, joint direct attack munition, magnetic bubble memory, transmission control protocol

command processing overhead time, electromechanical device, electrostatic generator, personal digital assistant