Meaning of “preoccupation” - Learner’s Dictionary

preoccupation

noun uk us /priːˌɒkjəˈpeɪʃən/
THINK/WORRY [ C, U ]

the state of thinking or worrying about something so much that you do not think about other things:

a preoccupation with death/food
THING [ C ]

something that you think or worry about a lot:

His main preoccupations are football and women.

(Definition of “preoccupation” from the Cambridge Learner’s Dictionary © Cambridge University Press)