venturi vs tubing

venturi and tubing both are nouns.

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

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

venturi: a tube with a constriction; used to control fluid flow (as in the air inlet of a carburetor)
tubing: conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

Other hypernyms of venturi include tube.

venturi (noun)	tubing (noun)
a tube with a constriction; used to control fluid flow (as in the air inlet of a carburetor)	conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases