Definition and meaning of overseas citizenship: Overseas citizenship is a form of citizenship whereby an individual holds full citizenship rights in a foreign country while still maintaining their primary citizenship in their home country. This form of citizenship is becoming increasingly popular as citizens seek to diversify their passport portfolio to access a variety of benefits abroad. For example, many countries offer tax incentives and other benefits to their citizens who are living and working abroad. This form of citizenship also allows individuals to travel and work more freely across borders.