reduce vs shave

reduce is not a noun while shave is a noun.

Word	Noun	Adjective	Verb	Adverb
reduce	No	No	Yes	No
shave	Yes	No	Yes	No

As verbs, shave is a hyponym of reduce; that is, shave is a word with a more specific, narrower meaning than reduce:

reduce (noun)	shave (noun)
	the act of removing hair with a razor

reduce (verb)	shave (verb)
take off weight	remove body hair with a razor
cut down on; make a reduction in	touch the surface of lightly
narrow or limit	cut closely
cook until very little liquid is left	cut or remove with or as if with a plane
to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons	make shavings of or reduce to shavings
make smaller	cut the price of
reduce in size; reduce physically
make less complex
reduce in scope while retaining essential elements
lessen the strength or flavor of a solution or mixture
be cooked until very little liquid is left
be the essential element
destress and thus weaken a sound when pronouncing it
undergo meiosis
reposition (a broken bone after surgery) back to its normal site
lower in grade or rank or force somebody into an undignified situation
lessen and make more modest
simplify the form of a mathematical equation of expression by substituting one term for another
bring to humbler or weaker state or condition
put down by force or intimidation