It indicates something that is:
* superior or greater than something else
* on top of something else
* exceeding or going beyond a normal level
Here are some examples of words with the prefix "super":
* supermarket: a large market that sells a wide variety of goods
* superintendent: a person who oversees a department or organization
* supernatural: beyond the natural world
* superpower: a country with exceptional military and economic strength
* supervise: to watch over and direct the work of others
The prefix "super" can also be used in a more informal way to mean "extremely" or "very". For example, you might say "super excited" or "super hungry".