witness

(noun) someone who sees an event and reports what happened. Synonyms: witnesser, informant.

(noun) a close observer; someone who looks at something (such as an exhibition of some kind). Synonyms: spectator, viewer, watcher, looker. Examples: "The spectators applauded the performance." "Television viewers." "Sky watchers discovered a new star."

(noun) testimony by word or deed to your religious faith.

(noun) (law) a person who attests to the genuineness of a document or signature by adding their own signature. Synonyms: attestant, attestor, attestator.

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

(verb) be a witness to. Example: "She witnessed the accident and had to testify in court."

(verb) perceive or be contemporaneous with. Synonyms: find, see. Examples: "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."