商人|しょうにんshounin[1]atamadaka (head-high)

1. nounmerchant; trader; tradesman; dealer; shopkeeper
   あの商人しょうにんは絹織物きぬおりものを商あきなう。↗

   The merchant deals in silk goods.

• Synonym商売人しょうばいにんCasualColloquial term for a person who does business; it can also mean a shrewd businessperson or an expert in a trade.
• SynonymマーチャントNeutralLoanword for a merchant, seen mostly in technical terms such as 「マーチャントバンク」.
• Synonym市人いちびとWrittenWritten word for a market vendor or a city resident; rarely used in modern Japanese.
• Related仕入れ先しいれさきNeutralA supplier or source of goods, named from the buyer's side — the party you purchase stock from.
• Related売人ばいにんCasualColloquial word for a seller of goods; today it mostly means a drug dealer and carries a negative shade.
• RelatedディーラーNeutralLoanword for a dealer, especially a car dealership; also the person who deals the cards at a casino.
• Related売り手うりてNeutralThe selling side in a transaction, paired with 「買い手」; it marks your position in the deal rather than a profession.
• RelatedベンダーNeutralLoanword for a supplier, especially of IT products; it can also mean a vending machine.
• Related商屋あきないやWrittenWritten word for a shop or a shopkeeper; rarely used in modern Japanese.
• RelatedマーチャンダイザーNeutralLoanword for a merchandiser who handles product planning through sales; a job title, not a general word for a trader.
• Antonym消費者しょうひしゃNeutralA consumer who buys and uses goods; stands opposite the selling 「商人」.
• Antonym買い手かいてNeutralThe buying side in a transaction, the counterpart of the seller.

Use 「商人」 for someone who makes a living by trade. For the selling side of a deal, say 「売り手」; for a car dealer, 「ディーラー」; for a supplier, 「ベンダー」 or 「仕入れ先」. For the buying side, use 「買い手」 or 「消費者」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 商売しょうばいを営いとなむ人ひと。