bound vs reduce

bound is a noun but reduce is not a noun.

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

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

bound (noun)	reduce (noun)
a light, self-propelled movement upwards or forwards
the greatest possible degree of something
the line or plane indicating the limit or extent of something
a line determining the limits of an area

bound (adjective)	reduce (adjective)
confined by bonds
secured with a cover or binding; often used as a combining form
held with another element, substance or material in chemical or physical union
confined in the bowels
headed or intending to head in a certain direction; often used as a combining form as in `college-bound students'
bound by an oath
covered or wrapped with a bandage
bound by contract
(usually followed by `to') governed by fate

bound (verb)	reduce (verb)
place limits on (extent or amount or access)	take off weight
spring back; spring away from an impact	cut down on; make a reduction in
move forward by leaps and bounds	narrow or limit
form the boundary of; be contiguous to	cook until very little liquid is left
	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 smaller
	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