street light silhouette

shad·ow [shad-oh]
-noun

1. a dark figure or image cast on the ground or some surface by a body intercepting light.
2. shade or comparative darkness, as in an area.
3. shadows, darkness, esp. that coming after sunset.
4. shelter; protection: sanctuary in the shadow of the church.
5. a specter or ghost: pursued by shadows.
6. a hint or faint, indistinct image or idea; intimation: shadows of things to come.
7. a mere semblance: the shadow of life.