What does the word concern mean?

Usage examples for concern

  1. Every day, men try to interest us in matters with which we have no concern. – The Book of Business Etiquette by Nella Henney
  2. His face, dimly seen, was full of a grave concern. – The Justice of the King by Hamilton Drummond
  3. Rosie looked at her friend in sudden concern. – The Rosie World by Parker Fillmore
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