証しょう言げん者しゃ

noun

witness; deponent

Refers to a person who gives testimony, especially in a legal or formal setting. 証人 is more common for a general witness.

• 裁さい判ばんで証しょう言げん者しゃが証しょう言げん台だいに立たった。

  The witness took the stand in court.

• 証しょう言げん者しゃの供きょう述じゅつは事じ件けんの重じゅう要ような手てがかりとなった。

  The witness's testimony became an important clue in the case.