What is an example of the word analogy?

The definition of analogy is the comparison between one thing and other made for purpose and explanation or clarification.

Example:

A street light is like a star. Both provide light at night, both are in predictable locations, both are overhead, and both serve no function in the daytime.

That is a simile! To make an analogy, you need something like:

Toe is to foot as finger is to hand.

TWO THINGS THAT RELATE THE SAME WAYYY THE OTHER GUY IS EL STUPIDO (chunko)