reduce vs concentrate

reduce is not a noun while concentrate is a noun.

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

As verbs, reduce and concentrate are synonyms defined as:

Other synonyms of reduce include boil down.

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

Other hyponyms of reduce include bowdlerise, bowdlerize, castrate, expurgate, shorten, condense, digest.

As verbs, reduce and concentrate are synonyms defined as:

Other synonyms of reduce include boil down, decoct.

reduce (noun)	concentrate (noun)
	a concentrated example of something
	a concentrated form of a foodstuff; the bulk is reduced by removing water
	the desired mineral that is left after impurities have been removed from mined ore

reduce (verb)	concentrate (verb)
take off weight	cook until very little liquid is left
cut down on; make a reduction in	make denser, stronger, or purer
narrow or limit	make central
cook until very little liquid is left	be cooked 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 more concise
make smaller	compress or concentrate
reduce in size; reduce physically	direct one's attention on something
make less complex	draw together or meet in one common center
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