Property: map:synonym

ObjectProperty(map:synonym annotation(rdfs:comment "A list of synonymous names for the Map or MapSet."^^<http://www.w3.org/2001/XMLSchema#string>)
                          super(map:datatypeProperties)
                          domain(unionOf(map:Map
                                         map:MapSet))
                          range(<http://www.w3.org/2001/XMLSchema#string>))