enlargement vs lump

enlargement and lump both are nouns.

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

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

Other hyponyms of enlargement include pseudobulb, puffiness, swelling.

enlargement (noun)	lump (noun)
the act of increasing (something) in size or volume or quantity or scope	a compact mass
a photographic print that has been enlarged	a large piece of something without definite shape
a discussion that provides additional information	an awkward stupid person
the state of being enlarged	an abnormal protuberance or localized enlargement

enlargement (verb)	lump (verb)
	group or chunk together in a certain order or place side by side
	put together indiscriminately