affirm vs swan

affirm is not a noun while swan is a noun.

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

As verbs, affirm and swan are synonyms defined as:

Other synonyms of affirm include assert, aver, avow, swear, verify.

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

affirm (verb)	swan (verb)
establish or strengthen as with new evidence or facts	to declare or affirm solemnly and formally as true
to declare or affirm solemnly and formally as true	move about aimlessly or without any destination, often in search of food or employment
say yes to	sweep majestically