1. Physical Visibility:
This is the most common usage. It means within view, or able to be seen. It refers to the physical presence of something within the range of one's vision.
* Example: "The ship is finally in sight!"
2. Imminence or Nearness:
This usage is more metaphorical. It suggests that something is close at hand, about to happen, or likely to occur soon.
* Example: "Victory is in sight for our team!"
Therefore, the meaning of "in sight" depends on the context. It can refer to physical visibility or imminence/nearness.