A boundary stone is a marker placed to define the limits of a property or territory. However, there are many synonyms for this term, including bounder, landmark, landmark stone, boundary marker, boundary post, boundary stone, boundary peg, boundary monument, and boundary, among others. Each of these terms clarifies the same idea of a physical marker placed to indicate where one area ends and another begins. No matter which term is used, a boundary stone serves the same vital function of providing clarity and demarcating the limits of an area. In any case, it is essential to respect these markers and follow the boundaries they establish.