preoccupation noun
ADJ. current, present, recent | central, chief, main, major Their chief preoccupation was how to feed their families. | constant, continuing | growing | obsessive
PREP. ~ for By now this had become a major preoccupation for him. | ~ with his growing preoccupation with death
You can also check other dicts: preoccupation (English, 中文解释 ), wordnet sense, Collins Definition