stimulate vs stifle

stimulate is not a noun while stifle is a noun.

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

stimulate (noun)	stifle (noun)
	joint between the femur and tibia in a quadruped; corresponds to the human knee

stimulate (verb)	stifle (verb)
cause to be alert and energetic	suppress or constrain so as to lessen in intensity
act as a stimulant	be asphyxiated; die from lack of oxygen
provide the needed stimulus for	suppress in order to conceal or hide
cause to do; cause to act in a specified manner	impair the respiration of or obstruct the air passage of
cause to occur rapidly
stir the feelings, emotions, or peace of
stir feelings in