Metadata for localized strings
A localized string is a value that can be represented in different languages, with each value identified in the context of a locale.
For example, if your data object contains a field called Description, this field can have string values that represent the English translation and the Spanish translation. To ensure that localized strings are properly handled within your data objects, you must define the strings as localized in your object schema.
Two methods exist in which you can define a property as localized in the object metadata.