puffiness vs swelling

puffiness and swelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
puffiness	Yes	No	No	No
swelling	Yes	No	No	No

As nouns, puffiness and swelling are synonyms defined as:

puffiness and swelling: an abnormal protuberance or localized enlargement

Other synonyms of puffiness include lump.

puffiness (noun)	swelling (noun)
lack of elegance as a consequence of being pompous and puffed up with vanity	the increase in volume of certain substances when they are heated (often accompanied by release of water)
an abnormal protuberance or localized enlargement	something that bulges out or is protuberant or projects from its surroundings
	an abnormal protuberance or localized enlargement