concernnoun/kənˈsɝn/

• 1

  That which affects one’s welfare or happiness. A matter of interest to someone.

  • Mark’s health was of great concern to Connie.
  • We drove back to the office with some concern on my part at the prospect of so large a case. Sunning himself on the board steps, I saw for the first time Mr. Farquhar Fenelon Cooke. He was dressed out in broad gaiters and bright tweeds, like an English tourist, and his face might have belonged to Dagon, idol of the Philistines.
• 2

  The placement of interest or worry on a subject.

  • Most people in Australia have no concern for the recent events in London.
• 3

  A worry; a sense that something may be wrong; an identification of a possible problem.

  • Let me know if you have any questions or concerns about the document.
  • The use of algorithms in policing is one example of their increasing influence on our lives.[…]who, if anyone, is policing their use[?] Such concerns were sharpened further by the continuing revelations about how the US National Security Agency (NSA) has been using algorithms to help it interpret the colossal amounts of data it has collected from its covert dragnet of international telecommunications.
• 4

  The expression of solicitude, anxiety, or compassion toward a thing or person.

  • Judy's eyes filled with concern as she listened to the news report.
  • Appleby […] rose from his seat when Morales came in. He shook hands urbanely, unbuckled his sword, and laid his kepi on the table, and then sat down with an expression of concern in his olive face which Appleby fancied was assumed.
• 5

  A business, firm or enterprise; a company.

  • The employees’ attitude is really hurting the concern.
  • a going concern
• 6

  computingengineeringmathematicsAny set of information that affects the code of a computer program.

  • At the programming level, an aspect is a modular unit that implements a concern.

concernverb/kənˈsɝn/

• 1

  To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to.

  • Preaching the kingdom of God, and teaching those things which concern the Lord Jesus Christ.
  • our wars with France have always affected us in our most tender interests, and concerned us more than those we have had with any other nation
• 2

  To engage by feeling or sentiment; to interest.

  • A good prince concerns himself in the happiness of his subjects.
  • They think themselves out the reach of Providence, and no longer concerned to solicit his favour.
• 3

  To make somebody worried.

  • I’m concerned that she’s becoming an alcoholic.