Definitions for "Instances"
(n) Cloned copies of geometry already existing in a database. Typically, an instance is linked directly to the geometric and topological information of its parent but contains unique information pertaining to its location, orientation, and scale in the model/drawing. Some systems refer to instances as symbols.
are objects that belong to a certain class. Each instance of a class contains all the properties and methods of that class. All movie clips are instances with properties (for example, _alpha and _visible) and methods (for example, gotoAndPlay and getURL) of the MovieClip class.
An instance is a single object, which is referred to several times within a model, for example a tree. This has the advantage of cutting down on file size by not unnecessarily repeating an object.
Keywords:  snapshot, assembly, part
A snapshot of a part used in an assembly.
Keywords:  impress, insider, your
impress with your insider knowledge