What does it mean when a Field Type in CloudKit Dashboard says "(List)" beside it?

In CloudKit Dashboard, some Field Types say "(List)" beside them. What does that mean?

Accepted Reply

Some field types also have related field types. There's a String field type, for instance, but also a [String] field type, which is simply a list of Strings. Similar, the Reference field type is handy for a single reference while the [Reference] field type if handy if you have more than one.

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Some field types also have related field types. There's a String field type, for instance, but also a [String] field type, which is simply a list of Strings. Similar, the Reference field type is handy for a single reference while the [Reference] field type if handy if you have more than one.