pump vs heart valve

pump and heart valve both are nouns.

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

pump (noun)	heart valve (noun)
a mechanical device that moves fluid or gas by pressure or suction	an implant that replaces a natural cardiac valve
a low-cut shoe without fastenings	a valve to control one-way flow of blood
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body

pump (verb)	heart 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