stimulate vs tickle

stimulate is not a noun while tickle is a noun.

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

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

stimulate (noun)	tickle (noun)
	the act of tickling
	a cutaneous sensation often resulting from light stroking

stimulate (verb)	tickle (verb)
cause to be alert and energetic	touch or stroke lightly
act as a stimulant	feel sudden intense sensation or emotion
provide the needed stimulus for	touch (a body part) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements
cause to do; cause to act in a specified manner
cause to occur rapidly
stir the feelings, emotions, or peace of
stir feelings in