Princeton's WordNet

1. witness, witnesser, informant(noun)

   someone who sees an event and reports what happened

2. spectator, witness, viewer, watcher, looker(noun)

   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(noun)

   testimony by word or deed to your religious faith

4. witness, attestant, attestor, attestator(noun)

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

5. witness(verb)

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

6. witness(verb)

   be a witness to

   "She witnessed the accident and had to testify in court"

7. witness, find, see(verb)

   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"

Kernerman English Learner's Dictionary

1. witness(noun)ˈwɪt nɪs

   sb who sees a crime or accident happening

   There were no witnesses to the murder.

2. witnessˈwɪt nɪs

   sb who tells a court of law what they know during a trial

   a witness for the defence/prosecution

3. witnessˈwɪt nɪs

   sb who is at an event in order to prove legally that it happened

   the two witnesses at the wedding

4. witness(verb)ˈwɪt nɪs

   to see a crime or accident happen

   He witnessed the robbery.

5. witnessˈwɪt nɪs

   to be a legal witness at an event

   two people to witness the signing of the contract

Wiktionary

1. witness(Noun)

   Attestation of a fact or event; the quality of witting something.

   She can bear witness, since she was there at the time.

2. witness(Noun)

   One who has a personal knowledge of something.

   As a witness to the event, I can tell you that he really said that.

3. witness(Noun)

   Someone called to give evidence in a court.

   The witness for the prosecution did not seem very credible.

4. witness(Noun)

   Something that serves as evidence; a sign.

5. witness(Verb)

   To furnish proof of, to show.

   This certificate witnesses his presence on that day.

6. witness(Verb)

   To take as evidence.

7. witness(Verb)

   To see, note, or gain knowledge of.

   He witnessed the accident.

8. witness(Verb)

   To present personal religious testimony; to preach at (someone) or on behalf of.

   "I don't really want to be actively harrassed (I mean witnessed to) (...)"uE000152870uE001

Origin: From witnesse, from witnes, equivalent to . Cognate with wetenisse, gewiznessi.

Webster Dictionary

1. Witness(verb)

   attestation of a fact or an event; testimony

2. Witness(verb)

   that which furnishes evidence or proof

3. Witness(verb)

   one who is cognizant; a person who beholds, or otherwise has personal knowledge of, anything; as, an eyewitness; an earwitness

4. Witness(verb)

   one who testifies in a cause, or gives evidence before a judicial tribunal; as, the witness in court agreed in all essential facts

5. Witness(verb)

   one who sees the execution of an instrument, and subscribes it for the purpose of confirming its authenticity by his testimony; one who witnesses a will, a deed, a marriage, or the like

6. Witness(verb)

   to see or know by personal presence; to have direct cognizance of

7. Witness(verb)

   to give testimony to; to testify to; to attest

8. Witness(verb)

   to see the execution of, as an instrument, and subscribe it for the purpose of establishing its authenticity; as, to witness a bond or a deed

9. Witness(verb)

   to bear testimony; to give evidence; to testify

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