pea shooter vs tubing

pea shooter and tubing both are nouns.

Word	Noun	Adjective	Verb	Adverb
pea shooter	Yes	No	No	No
tubing	Yes	No	No	No

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

pea shooter: a straight narrow tube through which pellets (as dried peas) can be blown at a target
tubing: conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

Other hypernyms of pea shooter include plaything, toy, tube.

pea shooter (noun)	tubing (noun)
a straight narrow tube through which pellets (as dried peas) can be blown at a target	conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases