独どく擅せん場じょう

noun

one's exclusive domain; field where one is unrivaled

Refers to a situation or area where a particular person or group dominates without competition. Often used in contexts like sports, business, or personal expertise.

See also: 独壇場

• 彼かれは数すう学がくの分ぶん野やでは独どく擅せん場じょうだ。

  He is unrivaled in the field of mathematics.

• この市し場じょうは長なが年ねん、あの会かい社しゃの独どく擅せん場じょうだった。

  This market has long been that company's exclusive domain.