concern

US /kənˈsɚn/

UK /kənˈsɜ:n/

A2TOEIC
v.t./i.Verb (Transitive/Intransitive)To be about a particular topic
His films mainly concern historical events
n. (c./u.)Noun (Countable/Uncountable)Company, firm or business
The automobile concern Mercedes is known all over the world
v.t./i.Verb (Transitive/Intransitive)To have a direct impact on someone
I knew it didn't concern me, but I wanted to help them somehow
v.t./i.Verb (Transitive/Intransitive)To be responsible or mixed up in; to be involved
He doesn't concern himself with her problems
n. (c./u.)Noun (Countable/Uncountable)Feeling of worry or anxiety
I want to thank you for your concern while I was in the hospital
v.t./i.Verb (Transitive/Intransitive)To feel worry or anxiety
Yes, we did concern ourselves about his safety when he came back so late
n. (c./u.)Noun (Countable/Uncountable)Interest or regard for someone or something.
She showed great concern for the welfare of the animals
n. (c./u.)Noun (Countable/Uncountable)A matter of interest or importance to one.
That's none of your concern
v.t./i.Verb (Transitive/Intransitive)To be of interest or importance to.
This doesn't concern me.

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