spillover

noun

spill·​over ˈspil-ˌō-vər How to pronounce spillover (audio)
often attributive
1
: the act or an instance of spilling over
2
: a quantity that spills over
3
: an extension of something especially when an excess exists
benefiting from a spillover of prosperity from neighboring states

Examples of spillover in a Sentence

Put a pan under the pie to catch any spillovers. New technology has a positive spillover effect into countless fields.
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.
This is a spillover of pandemic destruction that’s coming for our kids. Jennifer W. Tsai, STAT, 18 Jan. 2026 Denmark’s policy debate increasingly treats Novo as macro-critical, with estimates commonly cited around 4–5 percent of GDP on a direct basis, and materially higher once indirect spillovers are included. Joel Shulman, Forbes.com, 16 Jan. 2026 Albert Williams, an economist at Nova Southeastern University, says returning the energy sector to its heyday would have a dramatic spillover effect in a country in which oil is the dominant industry, sparking the opening of restaurants, stores and other businesses. Regina Garcia Cano, Fortune, 10 Jan. 2026 Albert Williams, an economist at Nova Southeastern University, says returning the energy sector to its heyday would have a dramatic spillover effect in a country in which oil is the dominant industry, sparking the opening of restaurants, stores and other businesses. Regina Garcia Cano, Los Angeles Times, 9 Jan. 2026 See All Example Sentences for spillover

Word History

First Known Use

1940, in the meaning defined at sense 1

Time Traveler
The first known use of spillover was in 1940

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Cite this Entry

“Spillover.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spillover. Accessed 23 Jan. 2026.

More from Merriam-Webster on spillover

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