bump vs reduce

bump is a noun but reduce is not a noun.

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

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

Other hyponyms of bump include sideline.

bump (noun)	reduce (noun)
an impact (as from a collision)
something that bulges out or is protuberant or projects from its surroundings
a lump on the body caused by a blow

bump (verb)	reduce (verb)
knock against with force or violence	take off weight
remove or force from a position of dwelling previously occupied	cut down on; make a reduction in
to play music at loud volume	narrow or limit
to enjoy some music greatly	cook until very little liquid is left
dance erotically or dance with the pelvis thrust forward	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
come upon, as if by accident; meet with	make smaller
assign to a lower position; reduce in rank	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