tube vs electrode

tube and electrode both are nouns.

Word	Noun	Adjective	Verb	Adverb
tube	Yes	No	Yes	No
electrode	Yes	No	No	No

tube (noun)	electrode (noun)
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases	a conductor used to make electrical contact with some part of a circuit
an electric railway operating below the surface of the ground (usually in a city)
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
(anatomy) any hollow cylindrical body structure
a hollow cylindrical shape

tube (verb)	electrode (verb)
place or enclose in a tube
convey in a tube
ride or float on an inflated tube
provide with a tube or insert a tube into