1. (

• witness ,
• witnesser ,
• informant ,

) someone who sees an event and reports what happened ;

2. (

• spectator ,
• witness ,
• viewer ,
• watcher ,
• looker ,

) a close observer; someone who looks at something (such as an exhibition of some kind); "the spectators applauded the performance"; "television viewers"; "sky watchers discovered a new star" ;

3. (

• witness

) testimony by word or deed to your religious faith ;

4. (

• witness ,
• attestant ,
• attestor ,
• attestator

) (law) a person who attests to the genuineness of a document or signature by adding their own signature ;

5. (

• witness ,

) (law) a person who testifies under oath in a court of law ;

1. (

• witness

) be a witness to; "She witnessed the accident and had to testify in court" ;

2. (

• witness ,
• find ,
• see ,

) perceive or be contemporaneous with; "We found Republicans winning the offices"; "You'll see a lot of cheating in this school"; "The 1960's saw the rebellion of the younger generation against established traditions"; "I want to see results" ;