<p><strong>Noun</strong></p><ul><li>Official name: Socialist Republic of Vietnam.</li><li>A country in Southeast Asia, comprising the former states of Annam, Tonkin, and Cochinchina; formerly part of French Indochina; divided into North Vietnam and South Vietnam during the Vietnam War but now reunified.</li><li>126,104 sq. mi. (326,609 sq. km): Hanoi.</li><li>Compare: North Vietnam, South Vietnam.</li></ul>