conk vs asphyxiate

conk is a noun but asphyxiate is not a noun.

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

As verbs, asphyxiate is a hyponym of conk; that is, asphyxiate 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
asphyxiate: be asphyxiated; die from lack of oxygen

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

conk (noun)	asphyxiate (noun)
informal term for the nose

conk (verb)	asphyxiate (verb)
pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain	be asphyxiated; die from lack of oxygen
pass from physical life and lose all bodily attributes and functions necessary to sustain life	deprive of oxygen and prevent from breathing
hit, especially on the head	impair the respiration of or obstruct the air passage of
come to a stop