Geocaching – name originates from the term “geo” (geography) and “cache”, coming from the French, a word meaning a hidden object of some sort. Other names for the sport include GPS Stash hunting or GPS-stashing, but were changed due to the negative connotation of “stash”.

Cache – a special box, registered online, which contains a log book, some trinkets or small “prizes”, or possibly clues that lead to another box. Caches may be placed in any location, from downtown streets and parks to remote cliffs and woods.

Log book – a must for all caches; the log book is the best part about a cache, sometimes – it is a little notebook where every person who finds the cache writes down his or her name and possibly a story of what the experience of the particular hunt was. Now there are special log books online as well.

GPS – global positioning system; GPS receivers are used to find the location of a cache.

Waypoint – named co-ordinates where cache is located; they are entered into the GPS unit and will show you a more accurate location of the cache.

Hitchhiker – item placed in a cache that has instructions to be delivered to a different location; the “travel bug” is a type of hitchhiker that allows geocachers to track the progress of an item online (similar to FedEx).
Muggle – if you know Harry Potter, you know what a muggle is; only in this case muggles are not non-magicians, but non-geocachers.