choke vs asphyxiate

choke is a noun but asphyxiate is not a noun.

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

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

choke: 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 choke include abort, stifle, suffocate, buy it, pip out, drown, predecease, famish, starve, fall, succumb, yield.

As verbs, choke and asphyxiate are synonyms defined as:

choke and asphyxiate: impair the respiration of or obstruct the air passage of

Other synonyms of choke include stifle, suffocate.

choke (noun)	asphyxiate (noun)
a valve that controls the flow of air into the carburetor of a gasoline engine
a coil of low resistance and high inductance used in electrical circuits to pass direct current and attenuate alternating current

choke (verb)	asphyxiate (verb)
breathe with great difficulty, as when experiencing a strong emotion	be asphyxiated; die from lack of oxygen
cause to retch or choke	deprive of oxygen and prevent from breathing
struggle for breath; have insufficient oxygen intake	impair the respiration of or obstruct the air passage of
constrict (someone's) throat and keep from breathing
reduce the air supply
pass from physical life and lose all bodily attributes and functions necessary to sustain life
suppress the development, creativity, or imagination of
become stultified, suppressed, or stifled
be too tight; rub or press
become or cause to become obstructed
wring the neck of
impair the respiration of or obstruct the air passage of
check or slow down the action or effect of
fail to perform adequately due to tension or agitation