bullseye

noun

, Plural bull's-eyes.

1. the circular spot, usually black or outlined in black, at the center of a target marked with concentric circles and used in target practice.

2. a shot that hits this.

3. the center or central area of a military target, as of a town or factory, in a bombing raid.

4. a missile that strikes the central area of a target.

5. the coordinates or instance of aiming and firing a missile that results in its hitting the center of a target.

6. Informal.

   1. any statement or act that is precisely to the point or achieves a desired result directly.

   2. something that is decisive or crucial; crux.