affright vs stimulate

affright is a noun but stimulate is not a noun.

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

As verbs, stimulate is a hypernym of affright; that is, stimulate is a word with a broader meaning than affright:

Other hypernyms of affright include excite, shake, shake up, stir.

affright (noun)	stimulate (noun)
an overwhelming feeling of fear and anxiety

affright (verb)	stimulate (verb)
cause fear in	cause to be alert and energetic
	act as a stimulant
	provide the needed stimulus for
	cause to do; cause to act in a specified manner
	cause to occur rapidly
	stir the feelings, emotions, or peace of
	stir feelings in