A '''witness''' is one who sees, knows, or vouches for something<ref>Black's Law Dictionary (7th ed., 1999)</ref>; one who [[testify|testifies]] as to what he has seen, heard, or otherwise observed; "a person called upon to observe a transaction, signing, etc. in order to testify concerning it if it is later held in question"<ref>Webster's New World Dictionary (Third College Edition, 1988)</ref>. | A '''witness''' is one who sees, knows, or vouches for something<ref>Black's Law Dictionary (7th ed., 1999)</ref>; one who [[testify|testifies]] as to what he has seen, heard, or otherwise observed; "a person called upon to observe a transaction, signing, etc. in order to testify concerning it if it is later held in question"<ref>Webster's New World Dictionary (Third College Edition, 1988)</ref>. |