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English definition of “business”

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business

noun  /ˈbɪz·nəs, -nəz/ us  

business noun (BUYING AND SELLING)

[C/U] the activity of buying and selling goods and services, or a particular company that does this, or work in general rather than pleasure: [C] He runs a dry cleaning business. [U] I’m in Baltimore on business. [U] Our firm does a lot of business with overseas customers. [U] She’s going into business (= starting a business) as a management consultant. [U] How’s business? [C/U] Business is also the degree of success of a company or of your work: [U] Business has been good.

business noun (A MATTER)

[U] a matter or a situation: I have some business to settle with Mr. Redford. Preparing your taxes can be a tricky business.

business noun (THINGS YOU DO)

[U] the things that you do or the matters that relate only to you: What she does after work is her own business. When I asked him what he was doing, he told me it was none of my business (= it did not involve me).
(Definition of business from the Cambridge Academic Content Dictionary © Cambridge University Press)
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