over·flow
ˌō-vər-ˈflō 
overflowed; overflowing; overflows
1
: to cover with or as if with water : inundate
2
: to flow over the brim of
3
: to cause to overflow
1
: to flow over bounds
2
: to fill a space to capacity and spread beyond its limits
the crowd overflowed into the street
over·flow
ˈō-vər-ˌflō
1
: a flowing over : inundation
2
: something that flows over : surplus
3
: an outlet or receptacle for surplus liquid
Examples of overflow in a Sentence
Verb
The river overflowed its banks.
The creek overflows every spring.
The water in the tub overflowed.
Books and papers overflowed his desk.
The paragraph overflowed the page.
Noun
a great overflow of water from the heavy rains swept mud and silt down onto the highway
an overflow of help actually made the job more complicated
Recent Examples on the Web
Stacia Datskovska, Footwear News, 24 Oct. 2025
Hesse’s life experiences would make for a fascinating movie, even without charisma, but the fact that the 90-year-old overflows with the joy of being alive and unending passion for cinema makes the director’s job a lot easier.
—Christian Zilko, IndieWire, 24 Oct. 2025
Arkansas Online, 22 Oct. 2025
Both the 350-person main sanctuary and 60-person overflow room were filled at the church, a few blocks from where the collision killed Andrew Olsen and injured his two siblings in the Lake Murray area of San Diego Monday morning.
—Caleb Lunetta, San Diego Union-Tribune, 22 Oct. 2025
See All Example Sentences for overflow
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Verb
The profile of this shoe is one that feels inherently familiar, but childlike playfulness is also secured vis-à-vis the fluffy sheepskin that seems to overflow from its color-happy laces.
—Stacia Datskovska, Footwear News, 24 Oct. 2025
Hesse’s life experiences would make for a fascinating movie, even without charisma, but the fact that the 90-year-old overflows with the joy of being alive and unending passion for cinema makes the director’s job a lot easier.
—Christian Zilko, IndieWire, 24 Oct. 2025
Noun
Officials at the Water Reclamation Authority are pursuing new goals after the utility was officially released last year from a pair of longstanding legal agreements that required the utility to address sewer overflows, leading to major investments across the system.
—Arkansas Online, 22 Oct. 2025
Both the 350-person main sanctuary and 60-person overflow room were filled at the church, a few blocks from where the collision killed Andrew Olsen and injured his two siblings in the Lake Murray area of San Diego Monday morning.
—Caleb Lunetta, San Diego Union-Tribune, 22 Oct. 2025
See All Example Sentences for overflow
Cite this Entry
“Overflow.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overflow. Accessed 29 Oct. 2025.
Copy CitationKids Definition
overflow
1 of 2 verb
over·flow
ˌō-vər-ˈflō
1
: to cover with or as if with water : inundate
2
: to flow over the brim or top of
the river overflowed its banks
3
: to flow over bounds
the creek overflows every spring
4
: to fill a space up and spread beyond its limits
the paragraph overflowed the page
overflow
2 of 2 noun
over·flow
ˈō-vər-ˌflō
Medical Definition
overflow
noun
over·flow
ˈō-vər-ˌflō
: an excessive flow or amount
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