Definition of "work at" [work at]

• To make a physical or mental effort to progress some specified task (verb)

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• "Rather than award the £1.4bn Thameslink contract to Bombardier, a firm that would do more of the value-added work at its plant in Derby, Philip Hammond and Vince Cable chose to anoint Siemens, which will build the trains in Germany, as their preferred bidder."
• "He arrived in New York, 7 Aug., 1876, was assigned to St. Alphonsus ', Baltimore, until 1880, and was occupied in parish work at St. Michael's church until 1884, when he was chosen"
• "He redonned the familiar garment of present orientation and vowed to work at blending more of that good feeling into his too well-established future orientation."