concern is a noun and a verb, concerned is an adjective, concerning is a preposition:His low grades concern me. One of my concerns is his low grades. We are concerned parents. Concerning the payments, how should we arrange them?
to relate to; be connected with; be of interest or importance to; affect:The water shortage concerns us all.
to interest or engage (used reflexively or in the passive, often fol. by with or in):She concerns herself with every aspect of the business.
to trouble, worry, or disquiet:I am concerned about his health.
n.
something that relates or pertains to a person; business; affair:Law is the concern of lawyers.
a matter that engages a person's attention, interest, or care, or that affects a person's welfare or happiness:The party was no concern of his.
worry, solicitude, or anxiety:to show concern for someone in trouble.
important relation or bearing:This news is of concern to all of us.
a commercial or manufacturing company or establishment:the headquarters of an insurance concern.
[Informal.]any material object or contrivance.
Medieval Latin concernere to relate to, distinguish (Late Latin: to mix for sifting), equivalent. to Latin con-con- + cernere to sift
Middle French concerner)
late Middle English concernen (1375–1425
1.See corresponding entry in Unabridged touch, involve.
3.See corresponding entry in Unabridged disturb.
5.See corresponding entry in Unabridged burden, responsibility. Concern,care,worry connote an uneasy and burdened state of mind. Concern implies an anxious sense of interest in something:concern over a friend's misfortune.Care suggests a heaviness of spirit caused by dread, or by the constant pressure of burdensome demands:Poverty weighs a person down with care.Worry is an active state of agitated uneasiness and restless apprehension:He was distracted by worry over the stock market.
8.See corresponding entry in Unabridged firm, house.
6.See corresponding entry in Unabridged indifference.