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.
Under dark skies, observers with a telescope of 8 inches or larger may be able to spot it as a faint, fuzzy patch of light. Anthony Wood, Space.com, 19 Dec. 2025 The valuation gods declared a winner in the quest to be America’s premier New York radio station, the callous observer might say. Craig Jenkins, Vulture, 19 Dec. 2025 The announcement is a stunning pivot given that Stefanik was considered the front-runner by most political observers in the GOP primary next year to unseat Democratic incumbent Kathy Hochul. Phillip M. Bailey, USA Today, 19 Dec. 2025 The sports leagues have promised to tighten internal controls to track suspicious activity and have worked with sports gambling partners to cap wager amounts in certain performance-specific bets, which many observers have said are ripe for rigging. Sylvan Lane, The Hill, 19 Dec. 2025 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 22 Dec. 2025.

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