本ほん契けい約やく

noun

formal contract; main contract; contract at hand

Refers to a definitive, legally binding contract, often distinguished from a preliminary agreement or memorandum. Used in legal, business, and formal contexts.

• 本ほん契けい約やくを締てい結けつする前まえに、内ない容ようをよくご確かく認にんください。

  Please carefully review the terms before signing the formal contract.

• 覚おぼえ書がきではなく、本ほん契けい約やくが必ひつ要ようです。

  We need a formal contract, not just a memorandum of understanding.