valve vs pump

valve and pump both are nouns.

Word	Noun	Adjective	Verb	Adverb
valve	Yes	No	No	No
pump	Yes	No	Yes	No

valve (noun)	pump (noun)
one of the paired hinged shells of certain molluscs and of brachiopods	a mechanical device that moves fluid or gas by pressure or suction
the entire one-piece shell of a snail and certain other molluscs	a low-cut shoe without fastenings
control consisting of a mechanical device for controlling the flow of a fluid	the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it

valve (verb)	pump (verb)
	question persistently
	deliver forth
	operate like a pump; move up and down, like a handle or a pedal
	raise (gases or fluids) with a pump
	draw or pour with a pump
	flow intermittently
	move up and down
	supply in great quantities