swan vs declare

swan is a noun but declare is not a noun.

Word	Noun	Adjective	Verb	Adverb
swan	Yes	No	Yes	No
declare	No	No	Yes	No

As verbs, declare is a hypernym of swan; that is, declare is a word with a broader meaning than swan:

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

Other hyponyms of swan include hold, claim, take, attest, protest, assure, tell.

swan (noun)	declare (noun)
stately heavy-bodied aquatic bird with very long neck and usually white plumage as adult

swan (verb)	declare (verb)
to declare or affirm solemnly and formally as true	state emphatically and authoritatively
move about aimlessly or without any destination, often in search of food or employment	state firmly
sweep majestically	make a declaration (of dutiable goods) to a customs official
	declare to be
	announce publicly or officially
	proclaim one's support, sympathy, or opinion for or against
	designate (a trump suit or no-trump) with the final bid of a hand
	authorize payments of