The following are SharePoint Dictionary Words of the Day Related to Entity:
Entity
Data class that represents a type of business data object which
is stored in a line-of-business (LOB) system whose instances have a persistent
EntityInstanceId.
EntityInstance
Set of values which have a unique identity that represent an
instance of an entity. They are stored in a line-of-business (LOB) system.
EntityInstanceId
Set of field values of an EntityInstance which collectively identify
an EntityInstance in a line-of-business (LOB) system.