Comparison to Western “Citizen”: In English, “citizen” primarily refers to a legal member of a nation-state (e.g., an American citizen). The Chinese equivalent for this concept is
公民 (gōngmín). 市民 (shìmín), on the other hand, is almost always used in a municipal context. You are a 市民 of Guangzhou, but a 公民 of China. This highlights a stronger emphasis on local, city-based identity in many day-to-day contexts.