上
shàng · HSK 1
on
⬆️ Pictograph: a mark above a horizontal line means 'above/on'.
上 is one of the oldest Chinese characters — a short stroke sitting on top of a long baseline, indicating position above. Its opposite 下 flips the same logic with the mark below the line.
上 — horizontal line above a baseline
上 is an indicative character (指事): a short stroke placed above a longer reference line shows the concept of 'above' or 'up'. The earliest oracle-bone forms used two horizontal lines for this; the modern shape added a vertical stroke for clarity. The core meaning of 'upper, above, to ascend' has stayed stable for millennia.