"concern" in the noun sense
1. concern
something that interests you because it is important or affects you
"the safety of the ship is the captain's concern"
2. concern, care, fear
an anxious feeling
"care had aged him"
"they hushed it up out of fear of public reaction"
3. concern
a feeling of sympathy for someone or something
"She felt strong concern for those less fortunate"
4. concern, worry, headache, vexation
something or someone that causes anxiety a source of unhappiness
"New York traffic is a constant concern"
"it's a major worry"
5. business, concern, business concern, business organization, business organisation
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"
"concern" in the verb sense
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"
Source: WordNet® (An amazing lexical database of English)
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