Definition of instances:
(n) :
A case offered as an exemplification or a precedent; an illustrative example.
(n) :
An occasion; an order of occurrence.
(n) :
One of a series of recurring occasions, cases, essentially the same.
(n) :
(computing) A specific occurrence of something that is created or instantiated, such as a database, or an object of a class in object-oriented programming.
(n) :
(massively multiplayer online games) A dungeon or other area that is duplicated for each player, or each party of players, that enters it, so that each player or party has a private copy of the area, isolated from other players.
(n) :
(massively multiplayer online games) An individual copy of such a dungeon or other area.