raven vs seize

raven is a noun but seize is not a noun.

Word	Noun	Adjective	Verb	Adverb
raven	Yes	No	Yes	No
seize	No	No	Yes	No

As verbs, seize is a hypernym of raven; that is, seize is a word with a broader meaning than raven:

raven (noun)	seize (noun)
large black bird with a straight bill and long wedge-shaped tail

raven (verb)	seize (verb)
eat greedily	capture the attention or imagination of
feed greedily	affect
prey on or hunt for	take into your hands deliberately
obtain or seize by violence	take or capture by force
	hook by a pull on the line
	take possession of by force, as after an invasion
	take temporary possession of as a security, by legal authority
	seize and take control without authority and possibly with force; take as one's right or possession