Merchant, Trader, Shopkeeper, Tradesperson
noun, の adjective
A merchandise person is a merchant. You want to buy something or you just looking?
しょうにん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
ここは昔、商人の家でした。
This was a merchant's house a long time ago.
町には商人がたくさんいます。
There are many merchants in the town.
彼、自分が商人だって言ってたんだけど、実はホームレスで、仕事は空き缶収集だったの。
He said he was a merchant, but he was actually homeless, and his job was collecting empty cans.