In formal ontology, the terms boundaries and borders are interchangeable. Their usage and definition are assumed to be completely identical. The studys task is to challenge that assumption. The study provides an investigation of their distinction. The author explains this distinction using naive argumentation and formal ontology, and demonstrates it in terms of usage and reference. A distinction between their orientation and symmetry is also provided. This study holds that a border is an entity which: coincides with the boundaries of the wholes it dissects must coincide in either total or incongruent fashion and is not a proper part of anything. The dissertation explores the property relations of borders, such as location, parthood, boundar...