witness

noun [C] (SEE)

/ˈwɪt.nəs/

Definition

1. Definition

2. Practise

B2 a person who sees an event happening, especially a crime or an accident: Police are appealing for witnesses to the accident to come forward. According to (eye) witnesses, the robbery was carried out by two teenage boys.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive be witness to sth › to see something happen: She was witness to the tragic event.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive › someone who is asked to be present at a particular event and sign their name in order to prove that things have been done correctly: He signed the treaty in the presence of two witnesses. They were married a year after they first met, with two friends acting as witnesses.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive

(Definition of witness noun (SEE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)