This symbol is used in textual graphics, pictograms, rebuses, and riddles.

With this symbol, compositions can be created to decorate posts and articles on web pages. It can also be used to create lines to separate different sections and chapters of text. A square with a diagonal grid can be placed at the beginning and end of chapter or section titles, or [URL /en/tools/nickname-generator/ usernames].

What about rebuses and pictograms? There a square with a diagonal grid can represent a window with bars or a fence since it visually resembles these objects.