What type of window is used or designed for displaying goods or advertising material?

A show window is specifically designed for displaying goods or advertising material in a retail environment. This type of window allows retailers to showcase their products to potential customers outside of the store, effectively drawing them in. Typically found in businesses like clothing stores, jewelry shops, and other retail establishments, a show window is crafted to attract attention and highlight the featured items, often through creative visual merchandising techniques.

The other options, while related to the concept of displaying items, do not specifically refer to windows designed for such purposes. A display window may imply general use for showcasing items but lacks the commercial connotation of a "show window." A storefront is a broader term that refers to the front of a store or business and encompasses the entire façade, not just the windows. Exhibition space generally refers to areas within galleries or convention centers designated for displaying works or products but does not pertain to window installations. Therefore, "show window" is the most precise term for this function.