1. Dessert: Most commonly, "sabayon" refers to a rich, creamy Italian dessert made with egg yolks, sugar, and wine (usually Marsala). It's similar to custard but lighter and airier.
2. Italian Word: "Sabayon" is also an Italian word that can mean "soap." This meaning is less common in English.
3. Other: There might be other, less common meanings of "sabayon" in specific contexts, such as slang or regional dialects.
To understand the intended meaning, you need to consider the context in which you encountered the word.
If you are unsure, providing more context can help me understand the meaning you are looking for.