Upscale means something that's high-quality or expensive.
When people say "upscale" they usually mean something that's fancy or classy. For example, an upscale restaurant might serve really nice food and have a lot of decorations like flowers and artwork on the walls. You might also hear someone describe a neighborhood as being "upscale", which means it has big houses and parks, and is generally considered a safe and desirable place to live. In this sense, "upscale" is often used to contrast with words like "downscale" or "low-end", implying that the opposite of upscale would be something that's cheap or tacky.
(US, of a place) Expensive and designed to appeal to affluent consumers.
