impede vs suffocate

impede and suffocate both are verbs.

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

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

impede (verb)	suffocate (verb)
block passage through	struggle for breath; have insufficient oxygen intake
be a hindrance or obstacle to	feel uncomfortable for lack of fresh air
	be asphyxiated; die from lack of oxygen
	suppress the development, creativity, or imagination of
	become stultified, suppressed, or stifled
	deprive of oxygen and prevent from breathing
	impair the respiration of or obstruct the air passage of