fan vs intensify

fan is a noun but intensify is not a noun.

Word	Noun	Adjective	Verb	Adverb
fan	Yes	No	Yes	No
intensify	No	No	Yes	No

As verbs, intensify is a hypernym of fan; that is, intensify is a word with a broader meaning than fan:

Other hypernyms of fan include compound, deepen, heighten.

fan (noun)	intensify (noun)
a device for creating a current of air by movement of a surface or surfaces
an ardent follower and admirer
an enthusiastic devotee of sports

fan (verb)	intensify (verb)
make (an emotion) fiercer	become more intense
blow away or off with a current of air	make more intense, stronger, or more marked
strike out (a batter), (of a pitcher)	increase in extent or intensity
agitate the air	make the chemically affected part of (a negative) denser or more opaque in order produce a stronger contrast between light and dark