商しょう売ばい道どう具ぐ

noun

stock-in-trade; tools of the trade

Refers to the essential equipment, goods, or skills that a person uses in their profession or business. Can be used literally for physical tools or figuratively for knowledge and abilities.

• 料りょう理り人にんにとって包ほう丁ちょうは商しょう売ばい道どう具ぐだ。

  For a chef, a knife is a tool of the trade.

• 彼かれの商しょう売ばい道どう具ぐはノートパソコンとスマートフォンだけだ。

  His stock-in-trade is just a laptop and a smartphone.