about or relating to someone or something
The principal spoke concerning the new school rules during the assembly.
I have a question concerning your latest invoice.
✦ Derived from the present participle of the verb “concern,” first recorded in Middle English, later developing a separate use as a preposition meaning “regarding.”
causing worry or anxiety; making you feel uneasy
The rise in infections is concerning the doctors at the hospital.
The child’s sudden silence was concerning to her parents.
✦ Formed from the participial adjective of the verb “concern,” taking on the sense of producing concern or worry in the late 19th century.
to make someone feel worried or anxious
The doctor’s silence concerned the patient.
It really concerns me that you are not eating properly.
to relate to; to be about or involve something or someone
The book concerns the lives of migrant workers.
His research concerns renewable energy.
simple past and past participle of concern: to worry or involve someone
The sudden drop in profits concerned the board members.
Environmental damage has long concerned scientists.
