To successfully achieve or negotiate a deal or agreement, especially regarding an acceptable price or exchange for something. The president made a deal with industrial lobbyists, promising to reduce taxes in exchange for jobs returning to the country. It was going to cost me a fortune to get the car fixed, but I made a deal with my mechanic to lower the price since I had been a loyal customer for so long. Look, I simply can't afford to pay that much, so let's make a deal, shall we?