reduce vs quench

reduce and quench both are verbs.

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

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

reduce: cut down on; make a reduction in
quench: reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance

reduce (verb)	quench (verb)
take off weight	suppress or crush completely
cut down on; make a reduction in	cool (hot metal) by plunging into cold water or other liquid
narrow or limit	reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance
cook until very little liquid is left	satisfy (thirst)
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	suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device
make smaller	put out, as of fires, flames, or lights
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