What word means a member of a country?

The word that means a member of a country, on the USCIS reading vocabulary list, is Citizen. A citizen is a person who is a legally recognized member of a sovereign state and who therefore holds the rights, privileges, and duties associated with that membership.

In the United States citizenship is acquired in two main ways. The first is by birth: anyone born on U.S. soil (with limited exceptions for children of foreign diplomats) is a citizen under the citizenship clause of the Fourteenth Amendment, ratified in 1868, which begins "All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States." Children born abroad to U.S. citizen parents may also acquire citizenship at birth under federal statute.

The second way to become a citizen is by naturalization, the legal process by which a lawful permanent resident files Form N-400, satisfies residence and physical presence requirements, demonstrates good moral character, passes the English and civics tests, and takes the Oath of Allegiance.

The Fourteenth Amendment also protects citizens from state actions that deny equal protection or due process of law. U.S. citizens have rights such as voting in federal elections, running for federal office (with the presidency reserved for natural-born citizens), serving on a jury, holding a U.S. passport, and bringing immediate relatives to the country, along with duties such as obeying the law, paying taxes, registering with the Selective Service if male and aged 18 to 25, and serving on a jury when called.

On the reading test Citizen may appear in a sentence such as "Who can vote?" or "Citizens vote in elections," connecting the reading vocabulary to civics questions about rights and responsibilities.