choke vs impede

choke is a noun but impede is not a noun.

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

As verbs, impede is a hypernym of choke; that is, impede is a word with a broader meaning than choke:

Other hypernyms of choke include block, close up, jam, obstruct, obturate, occlude.

As verbs, impede is a hypernym of choke; that is, impede is a word with a broader meaning than choke:

Other hypernyms of choke include block, close up, jam, obstruct, obturate, occlude.

choke (noun)	impede (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)	impede (verb)
breathe with great difficulty, as when experiencing a strong emotion	block passage through
cause to retch or choke	be a hindrance or obstacle to
struggle for breath; have insufficient oxygen intake
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