is for
Edge

Photo of the edge of a building
Photo by p_a_h
Attribution-Sharealike

An edge is a line or border where one thing stops and another thing starts. Edges are very important for finding your way around in the world, and most animals have eyesight designed to detect the edges of things.
The picture clearly shows the edge of a building against the sky.
A similar word to edge is boundary.

Edge rhymes with ...

Sedge, Hedge, College, Allege, Pledge, Dredge ... see all