concern

noun
  1. A feeling of worry or anxiety about something, especially one that is important or affects you personally. noun
    Her main concern is the safety of her children.
    There is growing concern about climate change.
  2. A matter of interest or importance to someone. noun
    The environment is a major concern for many voters.
    His primary concern is his family's well-being.
  3. A business or company. noun
    He runs a small printing concern.
    The family owns several business concerns in the area.
  4. To relate to; to be about. verb
    This document concerns the new policy changes.
    The book concerns the history of the town.
  5. To cause worry to someone. verb
    The rise in crime is beginning to concern the local residents.
    It concerns me that she hasn't called yet.