A short name used by this [Agent](foaf:Agent), for example as a login identifier.
The domain of this property is not formally given in , but implied to be either an Agent or a [Person](foaf:Person).
It is left undefined in this ontology, to enable its usage with certain concepts, like pseuds or personas, which might not formally fall into either category.
Some nicks may be [names](foaf:name), but some may be [identifiers](dcterms:identifier).