買い主・買主|かいぬしkainushi[0]heiban (flat)

1. nounbuyer; purchaser

• Synonym買い手かいてNeutralThe buying side in a deal; common in market talk such as 「買い手市場」, and used far more often than 「買い主」.
• Synonym買い方かいかたNeutralMeans either the buyer or the way of buying; as a buyer it turns up in stock-market talk, as a method it is everyday language.
• SynonymバイヤーNeutralA loanword for a professional buyer or purchasing agent who sources goods for stores and trading companies.
• Synonym購入者こうにゅうしゃWrittenA written/formal term for the person who pays for goods or services; leans toward consumption records.
• Synonym購買者こうばいしゃWrittenA written/formal term for a buyer, common in marketing analysis.
• Antonym売り主うりぬしNeutralThe seller, the party that sells in a transaction; the direct opposite of 「買い主」.

Use 「買い主」 for the party that buys under a contract, often in real-estate deals like 「買主・売主」. For the buying side in markets pick 「買い手」; 「バイヤー」 is a professional buyer; 「購入者」 and 「購買者」 are written terms; the opposite is 「売り主」.

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

1. ある品物しなものを買かう人ひと。