peril vs impact

peril and impact both are nouns.

Word	Noun	Adjective	Verb	Adverb
peril	Yes	No	Yes	No
impact	Yes	No	Yes	No

As verbs, impact is a hypernym of peril; that is, impact is a word with a broader meaning than peril:

Other hypernyms of peril include affect, bear on, bear upon, touch, touch on.

peril (noun)	impact (noun)
a venture undertaken without regard to possible loss or injury	influencing strongly
a source of danger; a possibility of incurring loss or misfortune	the violent interaction of individuals or groups entering into combat
a state of danger involving risk	the striking of one body against another
	a forceful consequence; a strong effect

peril (verb)	impact (verb)
put in a dangerous, disadvantageous, or difficult position	have an effect upon
pose a threat to; present a danger to	press or wedge together; pack together