extinguish vs stub out

extinguish and stub out both are verbs.

Word	Noun	Adjective	Verb	Adverb
extinguish	No	No	Yes	No
stub out	No	No	Yes	No

As verbs, extinguish and stub out are synonyms defined as:

Other synonyms of extinguish include crush out, press out, stub.

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

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

extinguish (verb)	stub out (verb)
put an end to; kill	extinguish by crushing
kill in large numbers
terminate, end, or take out
extinguish by crushing
put out, as of fires, flames, or lights