CNContactNicknameKey The contact’s nickname. Declarationlet CNContactNicknameKey: String DiscussionThis key takes a string value. See AlsoNameCNContactNamePrefixKeyCNContactGivenNameKeyCNContactMiddleNameKeyCNContactFamilyNameKeyCNContactPreviousFamilyNameKeyCNContactNameSuffixKeyCNContactPhoneticGivenNameKeyCNContactPhoneticMiddleNameKeyCNContactPhoneticFamilyNameKey