立会人|たちあいにんtachiainin[0]heiban (flat)

1. nounwitness; observer

• Synonym証人しょうにんWrittenWritten/formal prose. A 「証人」 proves facts, often by testifying in court; a 「立会人」 is present on the spot to see that a procedure is properly carried out.
• Related参考人さんこうにんWrittenWritten/formal prose. A 「参考人」 is called in an investigation or trial to give testimony or opinions; a 「立会人」 simply witnesses proceedings on the spot.

Use 「立会人」 for someone present to witness that a procedure or transaction is properly conducted; use 「証人」 for testifying in court and 「参考人」 for someone called in for questioning.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 不正ふせいがないか記録きろくが正規せいきに行おこなわれたかの証拠しょうこを保存ほぞんするためその場ばで立ち会たちあう人ひと。