Ruudustik
Ruudustik is the Estonian term for a grid: a regular network of horizontal and vertical lines that intersect to form a pattern of squares. It provides a reference frame that helps measure, align, and plot positions in two dimensions. The word combines ruut, meaning square, with the suffix -ustik, which denotes a system or structure.
In education and science the concept appears most often as graph paper or a grid used in
In digital media and design, grid systems organize content and interface elements to achieve visual coherence
Overall, ruudustik denotes a versatile, simple concept: a regular grid that facilitates measurement, alignment, and organization