You cite examples. A site is a location. And sight is what your eyes provide.
Something that illustrates or explains what something else is or does.
An example is a term used to describe something relative to something else. If I try to tell you what a software is or any such term and you are not able to understand it, then I may take the use of...
The detectives looked for a clue that would break the case wide open.
peanut butter peanut butter oh we all love peanut butter who does not love it these days. it is the best