Coke

noun3

1. •
   a sweet dark brown cold drink, especially Coca-Cola
2. •
   (US, informal) Any soft drink, regardless of type.
3. •
   A bottle, glass or can of Coca-Cola or a cola-based soft drink.

   • The waiter came up, and I ordered a Coke for her—she didn't drink—and a Scotch and soda for myself, but the sonuvabitch wouldn't bring me one, so I had a Coke, too. — 1951