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

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.
Their entry into the conflict represents an escalation that could further destabilize the region and global markets, observers note. Phillip M. Bailey, USA Today, 29 Mar. 2026 But some observers fear the enthusiasm is ripe for financial abuse. Bracey Harris, NBC news, 28 Mar. 2026 During Passover, Jewish observers don't eat leavened food. Jose R. Gonzalez, AZCentral.com, 28 Mar. 2026 Other observers warned of potentially cataclysmic consequences in court for Meta and other Silicon Valley giants. Sonja Sharp, Los Angeles Times, 28 Mar. 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

Cite this Entry

“Observer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/observer. Accessed 31 Mar. 2026.

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