Starbucks doesn't categorize its drinks into the typical small, medium, and large sizes. Instead, the company uses a more distinctive labeling system.

Howard Schultz, former director of retail operations and marketing at Starbucks, visited Italy in 1983 and was inspired by the Italian drink sizes: short, tall, and grande.

The chain now offers six beverage sizes: demi, short, tall, grande, venti, and trenta. Each corresponds to a different liquid measurement for whatever drink you order.

The demi is three ounces; a short is still eight ounces; a tall is 12 ounces; a grande is 16 ounces; a venti is 20 ounces (24 for cold drinks), and a trenta is 30 ounces.

The names that came after the original three are the actual Italian words for the numbers corresponding to the measurements. Venti translates to 20, for example.