denseness vs compactness

denseness and compactness both are nouns.

Word	Noun	Adjective	Verb	Adverb
denseness	Yes	No	No	No
compactness	Yes	No	No	No

As nouns, compactness is a hypernym of denseness; that is, compactness is a word with a broader meaning than denseness:

As nouns, denseness and compactness are synonyms defined as:

denseness and compactness: the spatial property of being crowded together

Other synonyms of denseness include concentration, density, tightness.

denseness (noun)	compactness (noun)
the amount per unit size	the spatial property of being crowded together
the spatial property of being crowded together	the consistency of a compact solid
the quality of being mentally slow and limited