Dictionary.com defines a nameSpace as: A set of names in which all names are unique.
in EasyUO terms, a nameSpace is a discreet area of memory that is used for user variables. Within a single nameSpace, each variable is unique regardless of weather the name has been used elsewhere. variables that are created inside a namespace therefore cannot be accessed from outside the nameSpace.
NameSpaced user variables are prefixed with an exclamation point character (!).