skilled workman vs lockmaster

Other hyponyms of skilled workman include aquanaut, oceanaut, armorer, armourer, aeronaut, aviator, flier, flyer, baker, bread maker, balloonist, butcher, slaughterer, calligrapher, calligraphist, coiner, minter, moneyer, cook, artificer, artisan, craftsman, journeyman, crew member, crewman, cutter, dental hygienist, draftsman, draftsperson, draughtsman, dyer, editor, editor in chief, electrician, lineman, linesman, engraver, aesthetician, esthetician, fisher, fisherman, founder, framer, fumigator, galvaniser, galvanizer, gilder, grip, harpooneer, harpooner, hunter, huntsman, indexer, laminator, lobsterman, lockkeeper, lockman, fixer, mender, repairer, funeral director, funeral undertaker, mortician, undertaker, mounter, functionary, official, oilman, lens maker, optician, painter, perfecter, phlebotomist, plaiter, plasterer, plater, power-station worker, power worker, pressman, printer, projectionist, refiner, preserver, refinisher, renovator, restorer, riveter, rivetter, router, crewman, sailor, man, military man, military personnel, serviceman, shearer, skinner, metalworker, smith, smith, technician, turner, turtler, voicer, vulcaniser, vulcanizer, wall-paperer, wallpaperer, wireman, wirer, tuner.