Definition & Meaning of "windowpane"

What is a "windowpane"?

A windowpane is a single sheet of glass that fits within the frame of a window. It serves as a barrier between the indoors and outdoors, allowing light to enter while keeping out wind and rain. Windowpanes can be made from various types of glass, including clear, frosted, or tinted glass, and they may have different thicknesses depending on their purpose. In addition to providing visibility and light, windowpanes also contribute to the insulation of a building, helping to maintain indoor temperatures. They are often part of a larger window assembly, which may include multiple panes arranged in various styles for aesthetic appeal and functionality.