poppet valve\n\nrelief valve\n\nvane\n\nshell
135659
Poppet valve would be your likely answer.\n\nCheck valve is also acceptable.
337602
Sysmex\n\nDeBeers\n\nDBSA\n\nCell C
478851
ipod\nmp3player\nscene it sports edition\nzoombox\ngamboy ds\nps3
247022
house..\ndog..\nmini van..\ncamcorder
30401
Ferry boat\nLocomotive\nMotorcycle\nTaxi cab
216717
Upright, canister, central vac, and Cyclone
446217
Nobody has given you the complete list yet...\n\nMost open to tightest:\nBore\nSkeet\nImproved Cylinder\nLight Modified\nModified\nImproved Modified\nLight Full\nFull\nExtra Full\nSuper Full
448446
showers-towel\nsteals-disguise\nsings-microphone\nf*&% around-condom (sorry, but that is what first came to mind)
267513
Plastic. It goes in easier.
384644
persuade\npopulate\neducate\nattend\nreduce\ntelevise
191023
CRUISE SHIP\nMONEY\nFRIENDS\n\nOH, SERIOUSLY?\n\nWATER\nA FENCE TOOL\nPSP
396701
Helloween\nRainbow\nSavatage\nKing Diamond\nDismember\nMercyful Fate
380307
A little pregnant\nCafeteria Food\nBug-free Software\nA fine mess\nGentle Turbulance\nInsane Logic\nAccurate Estimate
344590
Just try a few searches with words including "valve", for example\nhttp://www.google.fr/search?hl=fr&q=valve+manufacturers&btnG=Recherche+Google&meta=\n\nTakes you to links like:http://www.valvesourcebook.com/\nor:http://www.thomasnet.com/products/valves-90052002-1.html\n etc etc etc
365478
sneezing\nhiccups\nblinking\nbreathing\nsmiling\nsweating
283776
Bud \nBudsicles\nDank
511679
Now take all the words that have been answered for you and use a thesaurus to find even more!\n\ndrizzle, pour, flow, sprinkle, wave, surge, ebb, tide, tidal, lap (as in lap the shore), mist, fog, consensation, steam, drip, overflow, seap,  ...