: a person who sees something (such as a crime) happen
law : a person who makes a statement in a court about what he or she knows or has seen
: a person who is present at an event (such as a wedding) and can say that it happened
: to see (something) happen
law : to be present at (an event) in order to be able to say that it happened : to act as a legal witness of (something)
: to be the time or place when (something) happens
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