observer

noun

ob·​serv·​er əb-ˈzər-vər How to pronounce observer (audio)
Synonyms of observernext
: one that observes: such as
a
: a representative sent to observe but not participate officially in an activity (such as a meeting or war)
b
: an expert analyst and commentator in a particular field
political observers

Synonyms of observer

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Examples of observer in a Sentence

According to one observer, the event was poorly organized. The star is not visible to an observer without a telescope. According to one military observer, this change comes after years of planning. Observers say the economy is improving. The class has an observer today, so please be on your best behavior.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And ultimately, the deepest disappointment comes from realizing that one of modern studio comedy’s sharpest romantic observers has confused awareness for insight, and in the process, left his most devoted fans behind. — Alison Foreman, IndieWire, 5 Aug. 2026 Industry observers have noted that Moana’s flop felt like a case of too soon; Moana 2 just hit theaters a couple of years ago and was a hit on Disney+, after all. — Eric Vilas-Boas, Vulture, 5 Aug. 2026 Specifically, the new way that political observers see campaign polling — through strategic scoops and online posts that get in front of influencers and fuel betting markets. — David Weigel, semafor.com, 5 Aug. 2026 Because of that, Japan’s government has rejected the survivors’ request to sign the Treaty on the Prohibition of Nuclear Weapons or attend its meetings as observers. — ABC News, 5 Aug. 2026 See All Example Sentences for observer

Word History

Etymology

observe + -er entry 2

First Known Use

circa 1550, in the meaning defined above

Time Traveler
The first known use of observer was circa 1550

Phrases Containing observer

Rhymes for observer

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Browse Nearby Words

observedly
observer
observe the social amenities
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Cite this Entry

“Observer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/observer. Accessed 6 Aug. 2026.

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More from Merriam-Webster on observer

Nglish: Translation of observer for Spanish Speakers

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