ballcock

noun 0.679

seacock

noun 0.677

ball valve

noun 0.641

spigot

noun 0.587

needle valve

noun 0.587

valve

noun 0.578

standpipe

noun 0.578

check valve

noun 0.576

water tap

noun 0.568

petcock

noun 0.566

return valve

noun 0.553

penstock

noun 0.547

faucet

noun 0.546

screw top

noun 0.544

screwtop

noun 0.541

weathercock

noun 0.541

cold tap

noun 0.540

screw-top

noun 0.539

trocar

noun 0.539

woodcock

noun 0.535

poppet valve

noun 0.532

bottle top

noun 0.527

screw cap

noun 0.522

piston valve

noun 0.521

safety valve

noun 0.520

lock gate

noun 0.516

heart valve

noun 0.514

hot tap

noun 0.514

plughole

noun 0.514

suction valve

noun 0.511

demand valve

noun 0.510

airlock

noun 0.509

manhole

noun 0.508

stanch

noun 0.507

knob

noun 0.506

chokepoint

noun 0.503

microvalve

noun 0.503

headgate

noun 0.502

corkscrew

noun 0.502

on-off switch

noun 0.501

fire hydrant

noun 0.501

handwheel

noun 0.501