周
zhōu · HSK 2
Surname
周 = 'week' or 'cycle'; as a surname, one of the oldest Chinese clan names
周 (Zhōu) is the surname of the Zhou dynasty, which ruled China c. 1046–256 BCE. The character also means week, cycle, or all-around, hinting at completeness and continuity across generations.
周 — enclosure 囗 + 吉 (earth 土 + mouth 口)
Originally a pictograph of a field with grain plotted in rows, suggesting density and completeness. It came to mean 'all around,' 'circumference,' and 'complete,' later extending to 'week' (a full cycle). Also a major surname, famously the Zhou dynasty.