observable

adjective

ob·​serv·​able əb-ˈzər-və-bəl How to pronounce observable (audio)
1
2
: capable of being observed : discernible
observability noun
observable noun
observably adverb

Examples of observable in a Sentence

the size of the observable universe scientists often work with phenomena that are not directly observable
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.
Proponents argued that tariffs would shield American workers from the socially deleterious consequences of the industrial revolution that were already observable by the early 19th century in Europe, especially in Britain. Made By History, Time, 28 Apr. 2025 More objectively observable is the way those who navigate New York in their own acoustic bubble relate to the city itself. Justin Davidson, Curbed, 25 Apr. 2025 Phenotype-Based Classification Phenotype are observable characteristics or traits. Ann Pietrangelo, Verywell Health, 22 Apr. 2025 By shifting the focus from isolated incidents to observable patterns of behavior, organizations can foster a culture where feedback thrives. Sandro Da Silva, Forbes, 11 Mar. 2025 See All Example Sentences for observable

Word History

Etymology

borrowed from Middle French & Latin; Middle French, "that must or can be observed," borrowed from Latin observābilis "capable of being observed," from observāre "to give attention to, watch carefully, observe" + -bilis "capable (of acting) or worthy of (being acted upon)" — more at -able

First Known Use

1589, in the meaning defined at sense 2

Time Traveler
The first known use of observable was in 1589

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Cite this Entry

“Observable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/observable. Accessed 22 May. 2025.

Kids Definition

observable

adjective
ob·​serv·​able əb-ˈzər-və-bəl How to pronounce observable (audio)
: able to be observed : noticeable
observably adverb

More from Merriam-Webster on observable

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