concerned
adjective(con-cerned)
involved in or affected by or having a claim to or share in
Examples:
A memorandum to those concerned. 
An enterprise in which three men are concerned. 
Factors concerned in the rise and fall of epidemics. 
concerned
adjective(con-cerned)
culpably involved
Examples:
All those concerned in the bribery case have been identified. 
concerned
adjective(con-cerned)
feeling or showing worry or solicitude
Examples:
Concerned parents of youthful offenders. 
Was concerned about the future. 
We feel concerned about accomplishing the task at hand. 
Greatly concerned not to disappoint a small child.