构建
goù jiàn · HSK 6
to construct (sth abstract)
🏗️ 构 = frame/build + 建 = establish; together: construct abstractly
构 carries the sense of framing or composing (as in 结构 structure), and 建 means to establish or set up (as in 建立). Combined, 构建 is used for building abstract things like systems, theories, or frameworks rather than physical objects.
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.