客
きゃく · kyaku · JLPT N4 · noun
customer
🛎️ 客 = roof (宀) + each (各): each one who comes under your roof
The top 宀 means roof; the bottom 各 (each, arriving) also hints at the sound. Whoever arrives under your roof is a guest, and in a shop, a customer. Sound hook: kyaku is close to the Mandarin kè in 客人.