とんや問屋ton'yaといや問屋toiya
1.

A business that specializes in the bulk purchasing and selling of goods to retailers or other businesses, acting as an intermediary between producers and sellers.

2.

An establishment that manages the distribution of specific product categories, often implying a degree of authority or monopoly over that market segment.

3.

A person or organization that undertakes the responsibility of handling transactions and sales on behalf of others, emphasizing a role of trust and delegation in commercial relationships.

Example:

そうは問屋がおろさないぞ。

おろしどんや卸問屋oroshidon'ya
1.

A business that purchases goods in bulk from manufacturers and sells them in smaller quantities to retailers or other businesses.

2.

An intermediary entity in the supply chain that facilitates the distribution of products by acting as a seller to retailers and a buyer from producers.

3.

A type of merchant that specializes in large-scale sales transactions, focusing on inventory management and logistics for various types of goods.

こめどんや米問屋komedon'yaこめどいや米問屋komedoiya
1.

A merchant that specialized in the wholesale trade of rice during the Edo period, operating primarily in major urban centers such as Kyoto, Edo, and Osaka, and often forming associations to enhance their commercial power.

2.

A prominent trading house focused on rice distribution, playing a significant role in the economy of Japan's historical market systems, particularly in the context of the era's agricultural practices and urban growth.

3.

A central figure in Japan's rice trade during the Edo period, characterized by their involvement in large-scale transactions and their establishment of exclusive partnerships that conferred significant economic privileges.