A “drink” is any fluid, either of less than four percent strength or not more than twenty-four ounces, taken without eating anything else. So, technically yes. If you drink a glass of water (depending on the size), that will have 0 calories and 0 grams carbohydrate per serving.
Most people refer to food when they say drinks because it’s conventionally something outside water but there are many beverages that are super healthy like coconut water or beet juice that provide benefits for your body while lowering sugar intake in favor of natural sugars like fructose and glucose. Still, the majority of drinks on offer at most deli counters are usually some kind of juicy fruit cocktail mixed with sugar which can be about 30-40%.