Synonyms of observer

observer

noun

əb-ˈzər-vər 

as in spectator

someone who sees or watches something

observers of the boxing match seemed to be divided as to who won

Synonyms & Similar Words

• spectator
• viewer
• witness
• onlooker
• bystander
• watcher
• eyewitness
• spy
• voyeur
• peeper

Example Sentences

Recent Examples of observer

Most sensible observers will recognise that his level of influence sits somewhere in the middle. — Gregg Evans, New York Times, 31 July 2026

But Mahomes impressed observers around the NFL by returning for the start of training camp. — Pete Grathoff, Kansas City Star, 30 July 2026

The asteroid will make a nighttime pass across western Asia, Africa and Europe, although cloudy weather could be a limiting factor for many observers. — Andrew Jones, Scientific American, 30 July 2026

Venezuela has a tradition of having international observers in its electoral process, but that international observation must be respectful of the country. — Eric Cortellessa, Time, 30 July 2026