out·flow | \ ˈau̇t-ˌflō , ˌau̇t-ˈflō \
outflowed; outflowing; outflows

Definition of outflow 

(Entry 1 of 2)

intransitive verb

: to flow out


out·flow | \ ˈau̇t-ˌflō \

Definition of outflow (Entry 2 of 2)

1 : a flowing out the outflow of dollars

2 : something that flows out outflow of a sewage treatment plant

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Synonyms & Antonyms for outflow

Synonyms: Noun

exodus, gush, outpour, outpouring

Antonyms: Noun

flux, inflow, influx, inrush

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Examples of outflow in a Sentence


We joined the outflow of fans from the stadium after the game. The vents provide improved outflow of air.

Recent Examples on the Web: Verb

Heavy rains routinely overload Baltimore’s aged sewer system, sending human waste out of manholes and outflows that pour directly into the Jones Falls. Scott Dance, baltimoresun.com, "Weekend rain washes 10 million gallons of sewage-contaminated water into Baltimore's Jones Falls," 30 May 2018 The dam outflows below Wheeler and Wilson dams continue to produce some lunker smallmouths, with a fish over 8 pounds reported last week along with lots in the 4 to 5 pound class. Frank Sargeant, AL.com, "Friday Fishing Report," 30 Mar. 2018 And that doesn't account for the currents and outflowing tides that impeded him. Jon Wertheim, SI.com, "Sea of Dreams: How William Wrigley Jr. brought the Wrigley Ocean Marathon to life," 23 June 2017

Recent Examples on the Web: Noun

But the city’s initial plan left the largest outflow untouched, until residents, environmentalists and downstream state legislators raised an outcry. Patricia Sullivan, Washington Post, "Virginia regulators approve Alexandria sewer repair plan," 2 July 2018 Jitters leading to capital outflows could threaten a financial crisis. The Economist, "In its trade war with America, China dials down the hype," 12 July 2018 Dust storms The Phoenix area is dry, and outflow from thunderstorms and monsoon activity in recent days has kicked up dust from the parched landscape. Arizona Republic, azcentral, "Smog or fog? Nah. That's dust in the Phoenix area," 9 July 2018 These markets are more volatile and prone to investor outflows. Paul J. Davies, WSJ, "Why Hot Money Is a Problem for Britain at Just the Wrong Time," 28 June 2018 Not even the attraction of yields among the highest in emerging markets could stop bond inflows - which the country relies on to help finance a persistent current-account deficit - from turning to outflows. Colleen Goko, Bloomberg.com, "South African Rand Is Back to Its Bad Old Way," 21 May 2018 But if housing prices in China do start dropping rapidly, or big capital outflows re-emerge, the next 12 months could see Chinese currency and debt markets once again running into major trouble. Nathaniel Taplin, WSJ, "China’s Land Grab Could End Badly," 13 July 2018 Monthly outflows surged to more than 35 percent above historical averages for July, August, October and November. Tony Briscoe, chicagotribune.com, "What happens when Lake Superior has too much water? It dumps it into an already overflowing Lake Michigan," 13 July 2018 As cool outflow surged ahead of the encroaching storms, strong winds kicked up a curtain of dust high into the sky. Matthew Cappucci, Washington Post, "‘One of the most incredible sights’: Monster dust storm sweeps across Southern Arizona," 10 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'outflow.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of outflow


before the 12th century, in the meaning defined above


1785, in the meaning defined at sense 1

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Time Traveler for outflow

The first known use of outflow was before the 12th century

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More Definitions for outflow



English Language Learners Definition of outflow

: an outward flow or movement of something

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Comments on outflow

What made you want to look up outflow? Please tell us where you read or heard it (including the quote, if possible).


occurring twice a year or every two years

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