What is Geocaching?
You pronounce it Geo-cashing, like cashing a check.
Are there any other names for Geocaching?
The word Geocaching broken out is GEO for geography, and CACHING for the process of hiding a cache. A cache in computer terms is information usually stored in memory to make it faster to retrieve, but the term is also used in hiking/camping as a hiding place for concealing and preserving provisions.