客流
kèliú · HSK 7
Passenger flow
🚇 客 guest/passenger + 流 flow = passenger flow (the stream of people through a station)
客 means guest or passenger (same 客 as 客人 guest); 流 means flow or current (same 流 as 水流 water current). Together: the flow of passengers, the crowd-stream moving through stations, airports, or shops.
流 — water radical 氵 + 㐬 (phonetic, child being born)
流 is a semantic-phonetic compound. The water radical 氵 gives the meaning, while 㐬 depicts an infant being born head-down with amniotic fluid, suggesting downward flow. Together they convey water flowing, and by extension 'to flow' or 'current'.