1. (

• refer ,
• pertain ,
• relate ,
• concern ,
• come_to ,
• bear_on ,
• touch ,
• touch_on ,
• have_to_do_with

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

2. (

• concern ,
• interest ,
• occupy ,
• worry

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

1. (

• concerned

) 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" ;

2. (

• concerned ,
• interested

) 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" ;

3. (

• implicated ,
• concerned ,

) 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" ;