pipeline vs pipage

pipeline and pipage both are nouns.

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

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

pipeline: a pipe used to transport liquids or gases
pipage: a long tube made of metal or plastic that is used to carry water or oil or gas etc.

Other hypernyms of pipeline include pipe, piping.

pipeline (noun)	pipage (noun)
a pipe used to transport liquids or gases	a long tube made of metal or plastic that is used to carry water or oil or gas etc.
gossip spread by spoken communication	a fee charged for the use of pipes