crow vs preen

crow is a noun but preen is not a noun.

Word	Noun	Adjective	Verb	Adverb
crow	Yes	No	Yes	No
preen	No	No	Yes	No

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

Other hyponyms of crow include congratulate.

crow (noun)	preen (noun)
black birds having a raucous call
an instance of boastful talk
the cry of a cock (or an imitation of it)

crow (verb)	preen (verb)
dwell on with satisfaction	dress or groom with elaborate care
express pleasure verbally	pride or congratulate (oneself) for an achievement
utter shrill sounds	clean with one's bill