沙子
shā zi · HSK 3
sand
🏖️ 沙子 = sand + 子 (noun suffix, like -y/-ie)
沙 means sand; 子 is a common noun suffix that softens single-character nouns into everyday words. Same pattern as 桌子 (table) and 椅子 (chair).
子 — pictograph of a baby/child with arms out
子 began as a pictograph of a swaddled infant with a large head and outstretched arms, originally meaning 'baby' or 'child.' From there it broadened to 'son,' 'offspring,' and a respectful suffix for masters like 孔子 (Confucius). It also became one of the twelve earthly branches.