建树
jiàn shù · HSK 7
contribution
🌳 建树 = build (建) + tree (树); to plant a lasting tree is to make a real contribution
建 means to build or establish; 树 means tree. Together they mean to make a contribution or establish something of value, as a planted tree outlives the planter and stands as proof of lasting work.
建 — 廴 (stride radical) + 聿 (writing brush)
Originally depicted a hand holding a brush (聿) combined with the 廴 'stride/extend' radical, suggesting drawing out or laying down lines. From this came the meaning of setting up or establishing, as in marking out the foundations of a building. Today it broadly means to build, establish, or construct.
树 — wood 木 + 對 (phonetic, simplified to 对)
树 originally combined 木 'tree' with 尌, suggesting planting something upright. The right side served mainly as a phonetic clue, while 木 carried the meaning. Over time it came to mean both 'tree' and the verb 'to plant' or 'establish'.