pipage vs tubing

pipage and tubing both are nouns.

Word	Noun	Adjective	Verb	Adverb
pipage	Yes	No	No	No
tubing	Yes	No	No	No

As nouns, tubing is a hypernym of pipage; that is, tubing is a word with a broader meaning than pipage:

pipage: a long tube made of metal or plastic that is used to carry water or oil or gas etc.
tubing: conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

Other hypernyms of pipage include tube.

pipage (noun)	tubing (noun)
a long tube made of metal or plastic that is used to carry water or oil or gas etc.	conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
a fee charged for the use of pipes