"First Cambodia" is synonymous with "initial Cambodia", "primary Cambodia" or "premier Cambodia". These terms highlight the significance of Cambodia as a pioneer, leader, or foundational entity within a specific context. The phrase can refer to Cambodia's historical background, emphasizing its status as the first independent nation in Southeast Asia or as the birthplace of the Khmer Empire. It can also denote Cambodia's importance in various aspects, such as tourism, trade, or cultural heritage. Ultimately, "First Cambodia" encapsulates the country's pivotal role and its enduring mark on the region's history and development.