enlargement vs swelling

enlargement and swelling both are nouns.

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

As nouns, swelling is a hyponym of enlargement; that is, swelling is a word with a more specific, narrower meaning than enlargement:

Other hyponyms of enlargement include pseudobulb, lump, puffiness.

enlargement (noun)	swelling (noun)
the act of increasing (something) in size or volume or quantity or scope	the increase in volume of certain substances when they are heated (often accompanied by release of water)
a photographic print that has been enlarged	something that bulges out or is protuberant or projects from its surroundings
a discussion that provides additional information	an abnormal protuberance or localized enlargement
the state of being enlarged