piston
accelerator, auto, driver, engine, fan, generator, muffler, parts, prop, propellant, rotor, screw, wheel ,
usefulness - account, advantage, advantageousness, advisability, agreeableness, applicability, appropriateness, auspiciousness, availability, beneficialness, benefit, benevolence, benignity, class, cogency,
pacifistic - bland, civilian, conciliatory, doveish, gentle, irenic, judicious, mild, mild as milk, moderate, non-combatant, non-militant, non-violent, pacific, pacifist,
technical adviser - adept, artisan, artist, authority, connoisseur, consultant, crack shot, craftsman, dead shot, diplomat, elder statesman, expert, graduate, handy man, journeyman,
foregone conclusion - decree, foreknowledge, necessity, predestination ,
sheep rot - anthrax, blackleg, distemper, hoof-and-mouth disease, hydrophobia, mange, pip, rabies, rot, scabies ,
put in time - kill time, summer, take time, weekend, winter ,
sickly - achromatic, ailing, anaemic, ashen, ashy, bled white, bloodless, cadaverous, cloying, colourless, cranky, dead, deadly pale, deathly pale, debilitated,
round of applause - acclaim, acclamation, applause, big hand, cheer, clap, clapping, encore, hand, ovation, plaudit, popularity ,
cater - baby, bunker, coal, coddle, cosset, dance attendance on, feed, fill up, forage, fuel, gas, gas up, humour, indulge, minister to,
rabbeted - corduroy, corrugated, cut, engraved, fluted, furrowed, grooved, incised, pleated, ribbed, rutty, scored, scratched, slit, striated,
pacifistic - bland, civilian, conciliatory, doveish, gentle, irenic, judicious, mild, mild as milk, moderate, non-combatant, non-militant, non-violent, pacific, pacifist,
technical adviser - adept, artisan, artist, authority, connoisseur, consultant, crack shot, craftsman, dead shot, diplomat, elder statesman, expert, graduate, handy man, journeyman,
foregone conclusion - decree, foreknowledge, necessity, predestination ,
sheep rot - anthrax, blackleg, distemper, hoof-and-mouth disease, hydrophobia, mange, pip, rabies, rot, scabies ,
put in time - kill time, summer, take time, weekend, winter ,
sickly - achromatic, ailing, anaemic, ashen, ashy, bled white, bloodless, cadaverous, cloying, colourless, cranky, dead, deadly pale, deathly pale, debilitated,
round of applause - acclaim, acclamation, applause, big hand, cheer, clap, clapping, encore, hand, ovation, plaudit, popularity ,
cater - baby, bunker, coal, coddle, cosset, dance attendance on, feed, fill up, forage, fuel, gas, gas up, humour, indulge, minister to,
rabbeted - corduroy, corrugated, cut, engraved, fluted, furrowed, grooved, incised, pleated, ribbed, rutty, scored, scratched, slit, striated,