取引先（とりひきさき、torihikisaき）
- client/customer

The Japanese word 取引先, pronounced とりひきさき (torihikisaki), refers to a "business partner," "client," "customer," or "vendor" – basically, an entity with whom a company or individual has a business relationship. It encompasses both those from whom you purchase goods or services (vendors or suppliers) and those to whom you sell goods or services (customers or clients). The specific meaning can vary depending on context, but generally, it indicates a company, organization, or individual involved in commercial transactions with another party. The term implies an ongoing or established business relationship, not just a single, isolated transaction. The word literally breaks down into 取引 (torihiki), meaning "transaction" or "business," and 先 (saki), meaning "place," "destination," or in this context, "party." So, it means, literally, "transaction destination" or "place of business".

⚫︎新しい取引先を探しています。 Translation: We are looking for new business partners. ⚫︎当社は、主要な取引先と良好な関係を築いています。 Translation: Our company maintains good relationships with its key clients. ⚫︎その商品の取引先はどこですか？ Translation: Where is the supplier of that product?

取引先 is used in formal and semi-formal business settings. ⚫︎It's common in emails, reports, and meetings to refer to companies or individuals with whom you do business. ⚫︎You can use it when discussing sales, purchases, collaborations, and any other business interactions. ⚫︎You can use it to refer to a customer (a company that buys from you) or a vendor (a company you buy from). ⚫︎When addressing the business partner directly, consider using their company name or the appropriate honorifics like 様 (sama).

⚫︎取引先 is written in kanji as 取引先. ⚫︎The reading is とりひきさき in hiragana. ⚫︎There is only one standard way to write this word.

⚫︎顧客 (kokyaku) - customer, client (usually referring to those who buy from you) ⚫︎得意先 (tokuisaki) - customer, client (often implies a valued or preferred customer) ⚫︎仕入先 (shiiresaki) - supplier, vendor (those from whom you buy) ⚫︎パートナー (paatonaa) - partner (can be used for business partners, but can also have broader meanings) ⚫︎関係会社 (kankeigaisha) - affiliated company (a related company) ⚫︎相手先 (aitesaki) - the other party

While there isn't a direct antonym, words that imply a lack of business relationship could be considered opposites in a certain context. These may include words denoting "non-customer" or "non-vendor" such as: ⚫︎消費者 (shouhisha) - consumer ⚫︎一般人 (ippanjin) - ordinary person

新しい取引先との契約が成立しました。 ・Translation: The contract with the new business partner was concluded. ・Explanation: This sentence describes the successful establishment of a business relationship, highlighting the formal nature of the interaction.

取引先からの注文を処理する必要があります。 ・Translation: We need to process the order from the client. ・Explanation: This shows how 取引先 can refer to a company that has placed an order.

The word is a compound of 取引 (torihiki, meaning "transactions" or "business deals") and 先 (saki, meaning "place," "destination," or in this context, "party"). The combination of these two words forms a word that denotes the other party in a transaction. The word's etymology clearly reflects its meaning in the modern context.