mechanical device vs coupling

coupling vs mechanical device

mechanical device and coupling both are nouns.

Word	Noun	Adjective	Verb	Adverb
mechanical device	Yes	No	No	No
coupling	Yes	No	No	No

As nouns, coupling is a hyponym of mechanical device; that is, coupling is a word with a more specific, narrower meaning than mechanical device:

mechanical device: mechanism consisting of a device that works on mechanical principles
coupling: a mechanical device that serves to connect the ends of adjacent objects

Other hyponyms of mechanical device include broadcaster, spreader, bumper, bumper guard, carburetor, carburettor, compressor, copyholder, coupler, crimper, curler, hair curler, roller, diaphragm, stop, dicer, electromechanical device, escapement, gear lever, gearshift, gearstick, shifter, grab, claw, hook, machine, simple machine, pantograph, piston, plunger, propeller, propellor, pump, rachet, ratch, ratchet, auto-changer, changer, record changer, ride, seeder, shutter, binding, ski binding, splicer, splint, sprinkler, stator, stator coil, stoker, stretcher, striker, supply chamber, swing, pickup, pickup arm, tone arm, trap, vibrator, vibrator, voting machine, vane, weather vane, weathervane, wind vane, wheelwork, winder, key, winder, windscreen wiper, windshield wiper, wiper, wiper blade, durometer, page turner.

mechanical device (noun)	coupling (noun)
mechanism consisting of a device that works on mechanical principles	the act of pairing a male and female for reproductive purposes
	a mechanical device that serves to connect the ends of adjacent objects
	a connection (like a clamp or vise) between two things so they move together

Difference between mechanical device and coupling

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