deal in

US /diːl ɪn/

UK /diːl ɪn/

1.

to buy and sell a particular product or type of product

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My uncle deals in antique furniture.

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The company primarily deals in software solutions.

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trade in specialize in handle stock carry

2.

to be concerned with or to involve

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The report deals in the latest economic trends.

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His research primarily deals in quantum physics.

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concern involve relate to be about cover

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deal deal with a done deal make a deal do a deal wheel and deal square deal