· something that interests you because it is important or affects you; "the safety of the ship is the captain's concern"

Hypernym(s): interest, involvement

· an anxious feeling; "care had aged him"; "they hushed it up out of fear of public reaction"

Synonym(s): care, fear

Hypernym(s): anxiety

· a feeling of sympathy for someone or something; "She felt strong concern for those less fortunate"

Hypernym(s): sympathy, fellow_feeling

Antonym(s): unconcern

· something or someone that causes anxiety; a source of unhappiness; "New York traffic is a constant concern"; "it's a major worry"

Synonym(s): worry, headache, vexation

Hypernym(s): negative_stimulus

· a commercial or industrial enterprise and the people who constitute it; "he bought his brother's business"; "a small mom-and-pop business"; "a racially integrated business concern"

Synonym(s): business, business_concern, business_organization, business_organisation

Hypernym(s): enterprise

· 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