A "citizen of another country" refers to an individual who holds legal citizenship in a nation different from the one they currently reside in. This status grants them specific rights and responsibilities under the laws of their home country, such as voting, taxation, and military service obligations. These citizens may live abroad for various reasons, including work, study, or family ties. They often need to navigate the laws of their host country while maintaining their citizenship status, which can involve understanding visa requirements and international agreements between their home country and the host nation.