宣誓

1. Origins, structure, and basic meaning

• Structure: 宣誓 is read as せんせい and means an oath; it can be followed by する to form a verb.
• Basic usage: It describes an athlete’s formal promise or the oath taken by a witness before giving facts.

2. Common pitfalls and similar expressions

• Swearing to act fairly
  • 宣誓した means that the athletes’ representative formally promised to compete fairly. Example: 選手代表が正々堂々と戦うことを宣誓した。
• Speaking after an oath
  • 宣誓の後 marks the point after the witness has taken the oath and before the testimony begins. Example: 証人は宣誓の後、知っている事実を話し始めた。