转交
zhuǎn jiāo · HSK 7
to pass on to sb
📨🤝 转 = transfer/redirect + 交 = hand over → redirect-and-hand-over to a third person
转 carries the sense of turning or passing along, 交 means to hand over or deliver. Together they mean you receive something and hand it onward to someone else, like relaying a letter through a middleman.
转 — car radical 车 + 专 (phonetic)
转 is a semantic-phonetic compound. The left side 车 (cart/wheel) gives the meaning, evoking something that turns or rotates like a wheel. The right side 专 supplies the sound. Originally referring to the turning of a cart's wheels, it broadened to mean 'turn,' 'rotate,' or 'shift' in general.
交 — top 亠 + 父-like crossed legs
Originally a pictograph of a person standing with legs crossed, showing the idea of crossing or intersecting. From this concrete image, the meaning extended to abstract senses like 'exchange,' 'interact,' and 'hand over.' Modern uses such as 交流 (exchange) and 交通 (traffic) all trace back to this core notion of crossing.