abstraction vs preoccupancy

abstraction and preoccupancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
abstraction	Yes	No	No	No
preoccupancy	Yes	No	No	No

As nouns, preoccupancy is a hypernym of abstraction; that is, preoccupancy is a word with a broader meaning than abstraction:

Other hypernyms of abstraction include absorption, engrossment, preoccupation.

abstraction (noun)	preoccupancy (noun)
a general concept formed by extracting common features from specific examples	the act of taking occupancy before someone else does
the act of withdrawing or removing something	the mental state of being preoccupied by something
an abstract painting
a concept or idea not associated with any specific instance
preoccupation with something to the exclusion of all else
the process of formulating general concepts by abstracting common properties of instances