Literature Reference: Chang means long-lasting; Guo means nation. Source from 'Shuowen Jiezi'.
常: Ordinary; common. Describing people and things that stand out, distinct from the ordinary.
国: Nation, capital. In names, it often conveys the meaning of lofty aspirations and extraordinary ambitions.
Meaning: Chang Guo signifies a long-lasting and stable nation, embodying peace and prosperity.