输出
shūchū · HSK 5
export
📤 输 = transport + 出 = exit; transport-out = export/output
输 carries the sense of transporting or sending; 出 means to go out or exit. Together they form the act of sending something outward — exporting goods or outputting data. Same compound used in tech for data output.
输 — cart 車 + 兪 (phonetic)
输 is a phono-semantic compound. The radical 車 (cart/vehicle) gives the meaning, originally referring to transporting goods by cart. The component 兪 supplies the sound. From 'transport' it extended to 'send/deliver', then by metaphor to 'lose' (as in handing over stakes in a game).
出 — foot 止 emerging from enclosure 凵
出 is a pictograph showing a foot or plant stepping out of a hollow or enclosure, depicting the act of going forth. The original sense of 'coming out' or 'emerging' has remained stable since oracle bone script. It now broadly means 'to exit, go out, or produce.'