quench vs extinguish

quench and extinguish both are verbs.

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

As verbs, quench and extinguish are synonyms defined as:

Other synonyms of quench include blow out, snuff out.

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

Other hyponyms of quench include crush out, press out, stub, stub out, douse, put out.

quench (verb)	extinguish (verb)
suppress or crush completely	put an end to; kill
cool (hot metal) by plunging into cold water or other liquid	kill in large numbers
reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance	terminate, end, or take out
satisfy (thirst)	extinguish by crushing
suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device	put out, as of fires, flames, or lights
put out, as of fires, flames, or lights