· be relevant to; "There were lots of questions referring to her talk"; "My remark pertained to your earlier comments"

Synonym(s): refer, pertain, relate, come_to, bear_on, touch, touch_on, have_to_do_with

· be on the mind of; "I worry about the second Germanic consonant shift"

Synonym(s): interest, occupy, worry

· 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"

Antonym(s): unconcerned

· 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"

Synonym(s): interested

· 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"

Synonym(s): implicated