The document defines several terms related to position and edges: 1. Beside means next to or very close to something or someone. It can also refer to being in comparison to something. 2. Edge refers to the outer limits or boundaries of an object or area, as well as the sharp part of a tool. It can also refer to being in a risky or unstable situation. 3. Nearly means almost but not completely, especially in comparison to another person or thing. It is usually used in a comparative sense.