reduce vs bound

reduce is not a noun while bound is a noun.

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

As verbs, bound is a hypernym of reduce; that is, bound is a word with a broader meaning than reduce:

Other hypernyms of reduce include confine, limit, restrict, throttle, trammel.

reduce (noun)	bound (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

reduce (adjective)	bound (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

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