What does the abbreviation "S" stand for in beverage types?

In the context of beverage types, the abbreviation "S" stands for "Steamer." A steamer is a popular drink made with steamed milk and flavoring, often without coffee or espresso, resulting in a creamy and sweet beverage. This drink is particularly favored because of its texture and versatility in accommodating various flavors, such as vanilla or caramel.

The other beverage types listed do not commonly use the abbreviation "S." For instance, while a latte does include steamed milk, it is typically referred to by its full name or as "L." Similarly, hot chocolate is recognized by that specific term rather than an abbreviation, and an espresso macchiato, known for its strong espresso flavor topped with a small amount of milk, has its own distinct naming convention as well. Thus, "Steamer" is universally accepted in coffee culture as the beverage represented by the abbreviation "S."