incursion vs foray

incursion and foray both are nouns.

Word	Noun	Adjective	Verb	Adverb
incursion	Yes	No	No	No
foray	Yes	No	Yes	No

As nouns, foray is a hyponym of incursion; that is, foray is a word with a more specific, narrower meaning than incursion:

Other hyponyms of incursion include interpenetration, breakthrough, invasion, infiltration, maraud, raid.

incursion (noun)	foray (noun)
an attack that penetrates into enemy territory	a sudden short attack
the act of entering some territory or domain (often in large numbers)	an initial attempt (especially outside your usual areas of competence)
the mistake of incurring liability or blame

incursion (verb)	foray (verb)
	briefly enter enemy territory
	steal goods; take as spoils