encounter vs intersect

encounter is a noun but intersect is not a noun.

Word	Noun	Adjective	Verb	Adverb
encounter	Yes	No	Yes	No
intersect	No	No	Yes	No

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

Other hyponyms of encounter include cross.

encounter (noun)	intersect (noun)
a minor short-term fight
a casual meeting with a person or thing
a hostile disagreement face-to-face
a casual or unexpected convergence

encounter (verb)	intersect (verb)
contend against an opponent in a sport, game, or battle	meet at a point
come together
come upon, as if by accident; meet with
be beset by
experience as a reaction