retentiveness vs module

retentiveness and module both are nouns.

Word	Noun	Adjective	Verb	Adverb
retentiveness	Yes	No	No	No
module	Yes	No	No	No

As nouns, module is a hypernym of retentiveness; that is, module is a word with a broader meaning than retentiveness:

Other hypernyms of retentiveness include faculty, mental faculty.

retentiveness (noun)	module (noun)
the property of retaining possessions that have been acquired	a self-contained component (unit or item) that is used in combination with other components
the power of retaining liquid	computer circuit consisting of an assembly of electronic components (as of computer hardware)
the power of retaining and recalling past experience	detachable compartment of a spacecraft
	one of the inherent cognitive or perceptual powers of the mind