SKIP TO CONTENT

eyewitness

An eyewitness is an observer who's seen something clearly enough to describe it. If you're an eyewitness to a car accident, the police might want to ask you exactly what you saw.

An eyewitness is valuable to crime investigators because she has seen the incident happen with her own eyes. You could also be an eyewitness to something less serious, like a boy being mean to his younger brother when he thinks no one is watching, or a woman throwing her soda can on the ground. While a witness may have valuable information about something, an eyewitness is even more important because he has actually seen — or witnessed — the event in question.

Definitions of eyewitness
  1. noun
    a spectator who can describe what happened
    see moresee less
    type of:
    looker, spectator, viewer, watcher, witness
    a close observer; someone who looks at something (such as an exhibition of some kind)
  2. verb
    be present at an event and see it with one's own eyes
    see moresee less
    type of:
    witness
    be a witness to
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week

ACT

$29.95
  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week