subdue vs quench

subdue and quench both are verbs.

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

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

subdue (verb)	quench (verb)
correct by punishment or discipline	suppress or crush completely
bring under control by force or authority	cool (hot metal) by plunging into cold water or other liquid
make subordinate, dependent, or subservient	reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance
get on top of; deal with successfully	satisfy (thirst)
hold within limits and control	suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device
put down by force or intimidation	put out, as of fires, flames, or lights