گزارش خطا در معنی کلمه 'بی اعتبار بودن بی اعتباری چیزی را اثبات کردن'

1 Law:: establish the invalidity of sth (‘avoidance’ is destroying the effects of a written instrument, or of any disposition therein by revocation on the part of any person entitled to revoke the same, or by establishing its invalidity in a court of justice – JBS(