• noun:   testimony by word or deed to your religious faith
• noun:   someone who sees an event and reports what happened
• noun:   (law) a person who attests to the genuineness of a document or signature by adding their own signature
• noun:   (law) a person who testifies under oath in a court of law
• noun:   a close observer; someone who looks at something (such as an exhibition of some kind)
• verb:   be a witness to
• verb:   perceive or be contemporaneous with

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