edge

Definitions

• The boundary line of a surface.
• (geometry) A one-dimensional face of a polytope. In particular, the joining line between two vertices of a polygon; the place where two faces of a polyhedron meet.
• An advantage.
• (also) The thin cutting side of the blade of an instrument, such as an ax, knife, sword, or scythe; that which cuts as an edge does, or wounds deeply, etc.
• A sharp terminating border; a margin; a brink; an extreme verge.
• Sharpness; readiness or fitness to cut; keenness; intenseness of desire.
• The border or part adjacent to the line of division; the beginning or early part (of a period of time)
• (cricket) A shot where the ball comes off the edge of the bat, often unintentionally.
• (graph theory) A connected pair of vertices in a graph.
• In male masturbation, a level of sexual arousal that is maintained just short of reaching the point of inevitability, or climax; see also edging.