飞行员
fēi xíng yuán · HSK 6
pilot
✈️ 飞 fly + 行 go/operate + 员 person = one who operates flight
飞行 means flying or aviation (fly + go/operate), and 员 is the agent suffix for a person in a role (like 演员 actor, 服务员 server). So 飞行员 literally decomposes as flight-operator-person = pilot.
飞 — pictograph of a bird in flight (wings + body)
飞 is a pictograph originally depicting a bird soaring with outstretched wings, with the upper stroke suggesting the head and the curved strokes representing wings and tail. The traditional form 飛 shows the wings more clearly; 飞 is the simplified version retaining just one wing-like element. Its core meaning 'to fly' has stayed stable throughout history.
行 — crossroads pictograph (left 彳 + right 亍)
行 originally pictured a four-way crossroads in oracle bone script, with two paths meeting. From 'road' it extended to 'walk, go, travel,' and then to 'a row, line' or 'business firm' (read háng). The two halves 彳 and 亍 are the split sides of that ancient crossroads.
员 — mouth 口 + shell/money 贝 (貝)
Originally a pictograph of a round bronze tripod vessel, with 口 depicting its round opening and 鼎 (later simplified to 貝/贝) showing the vessel itself. The original sense was 'round,' now written 圓/圆. It was borrowed to mean 'member' or 'person in a role,' which became its main modern meaning.