pump vs valve

pump and valve both are nouns.

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

pump (noun)	valve (noun)
a mechanical device that moves fluid or gas by pressure or suction	one of the paired hinged shells of certain molluscs and of brachiopods
a low-cut shoe without fastenings	the entire one-piece shell of a snail and certain other molluscs
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body	control consisting of a mechanical device for controlling the flow of a fluid
	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

pump (verb)	valve (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