also: かんしんごと
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.
Environmental issues are a major matter of concern for many people.
His interest is mainly directed toward economic policy.
The future of the economy is the public's biggest concern.
The incident quickly became a matter of public concern.
Environmental issues are a matter of common concern for many countries.