concerned in WordNet English dictionary

1. feeling or showing worry or solicitude
   "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"
   concerned 
   
2. involved in or affected by or having a claim to or share in
   "a memorandum to those concerned"; "an enterprise in which three men are concerned"; "factors concerned in the rise and fall of epidemics"; "the interested parties met to discuss the business"
   concerned  interested 
   
3. culpably involved
   "all those concerned in the bribery case have been identified"; "named three officials implicated in the plot"; "an innocent person implicated by circumstances in a crime"
   implicated  concerned