or a.

Interested; engaged; having a connection with that which may affect the interest, welfare or happiness. All men are concerned in the propagation of truth. We are concerned in the virtuous education of our children.

Interested in business; having connection in business; as, A is concerned with B in the East India trade. Of an advocate or counselor we say, he is concerned in the cause of A against B.

Regarding with care; solicitous; anxious; as, we are concerned for the fate of our fleet.