To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to.
To engage by feeling or sentiment; to interest.
A good prince concerns himself in the happiness of his subjects.
To make somebody worried.
I’m concerned that she’s becoming an alcoholic.
Showing concern.
There was a concerned expression on her face as I told her the news.
Involved or responsible.
The people concerned have been punished.