Witness
/ˈwɪt.nəs/
Synonyms
- bystander
- eyewitness
- observer
- onlooker
- testifier
Slang Meanings
To see an event happen, often used in informal contexts.
Did you witness that crazy fight at the bar last night?
To back someone up or agree with their story.
I can witness for her, she was definitely there.