conk vs stifle

conk and stifle both are nouns.

Word	Noun	Adjective	Verb	Adverb
conk	Yes	No	Yes	No
stifle	Yes	No	Yes	No

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

conk: pass from physical life and lose all bodily attributes and functions necessary to sustain life
stifle: be asphyxiated; die from lack of oxygen

Other hyponyms of conk include abort, asphyxiate, suffocate, buy it, pip out, drown, predecease, famish, starve, fall, succumb, yield.

conk (noun)	stifle (noun)
informal term for the nose	joint between the femur and tibia in a quadruped; corresponds to the human knee

conk (verb)	stifle (verb)
pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain	suppress or constrain so as to lessen in intensity
pass from physical life and lose all bodily attributes and functions necessary to sustain life	be asphyxiated; die from lack of oxygen
hit, especially on the head	suppress in order to conceal or hide
come to a stop	impair the respiration of or obstruct the air passage of