运用
yùnyòng · HSK 4
to use; to put to use
⚙️ 运 = transport/move + 用 = use → move-into-use = apply, wield
运 carries the sense of transporting or putting in motion; 用 means to use. Together they mean taking something and actively putting it to work — applying knowledge, wielding a skill, deploying a method.
运 — walk radical 辶 + 军 jūn (army)
Originally depicted an army (军) on the move (辶), meaning to transport or move troops. The sense broadened to 'transport, move, revolve' and later acquired the abstract meaning of 'fortune' or 'luck'—what fate moves toward you. The simplified form replaces traditional 運.
用 — pictograph of a bucket or wooden pail
用 originally depicted a bucket or container, possibly a sacrificial vessel made of wood. Over time it was borrowed to mean 'to use' or 'employ,' losing its concrete object sense. The modern meaning 'use' has been standard since early classical Chinese.