Concern

v. t.
  1. To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to.
  2. To engage by feeling or sentiment; to interest; as, a good prince concerns himself in the happiness of his subjects.

v. i.
  1. To be of importance.

n.
  1. That which relates or belongs to one; business; affair.
  2. That which affects the welfare or happiness; interest; moment.
  3. Interest in, or care for, any person or thing; regard; solicitude; anxiety.
  4. (Com.) Persons connected in business; a firm and its business; as, a banking concern.
  5. The whole concern ,
    all connected with a particular affair or business.