An ordinary expense is one that is common and accepted in your industry.

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Yes, the judge said, these fees were deductible as an "ordinary and necessary expense" of being a mobster.

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Pragma, an expert in trade execution, has just published a study show how high-frequent trading (HFT) profits come at the expense of ordinary investors.

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Mr Chope told MPs it was a misuse of a private bill to extend the powers of local authorities "at the expense of ordinary citizens in London" when it was not being done elsewhere in the country.

BBC: London Local Authorities Bill

The leftist Syriza Party of Greece, which had characterized austerity policies of the current government as serving the interest of bankers, oligarchs and plutocrats at the expense of ordinary Greeks ended up leap-frogging Pasok for second place.

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