concern

That which affects one’s welfare or happiness. A matter of interest to someone. The adposition before the matter of interest is usually over, about or for.

"Judy's eyes filled with concern as she listened to the news report."

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

A business, firm or enterprise; a company.

"The employees’ attitude is really hurting the concern."

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."