merchant; trader; shrewd businessman
expert (in a trade or profession); professional
woman working in the nightlife business (bar or nightclub hostess, geisha, etc.); demimondaine
商売人として成功している。
He is succeeding as a merchant.
商売人の父は立派だ。
My father who is a merchant is admirable.
商売人らしい考え方をする。
He thinks like a merchant would.