根こん本ぽん原げん理り

noun

fundamental principles; basics; ground rules

Refers to the most basic, underlying rules or ideas of a system, field, or activity. Often used in formal or explanatory contexts.

• 物ぶつ理り学がくの根こん本ぽん原げん理りを理り解かいするのは難むずかしい。

  Understanding the fundamental principles of physics is difficult.

• この会かい社しゃの根こん本ぽん原げん理りは「顧こ客きゃく第だい一いち」です。

  The fundamental principle of this company is 'customer first'.