also: かんしんごと
noun
matter of concern; matter of interest
Refers to a topic, issue, or subject that someone cares about or is interested in. Often used in formal or news contexts.
環境問題は多くの人にとって大きな関心事だ。
Environmental issues are a major matter of concern for many people.
彼の関心事
His interest is mainly directed toward economic policy.