Definition of witness
1
:attestation of a fact or event :testimony
2
:one that gives evidence;
specifically
:one who testifies in a cause or before a judicial tribunal
3
:one asked to be present at a transaction so as to be able to testify to its having taken place
4
:one who has personal knowledge of something
5 a
:something serving as evidence or proof :sign
b
:public affirmation by word or example of usually religious faith or conviction
- the heroic witness to divine life
- —Pilot
6
capitalized
:a member of the Jehovah's Witnesses
