Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “witness”

witness

verb [T]
 
 
/ˈwɪtnəs/
SEE B2 to see something happen, especially an accident or crime: Did anyone witness the attack?Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive
DOCUMENT to sign your name on an official document to say that you were present when someone else signed itOfficial documentsSigning and signatures
(Definition of witness verb from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “witness” in other dictionaries

Word of the Day

improvisation

a performance that an actor, musician, etc. has not practised or planned

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More