outflow

O1U1T1F4L1O1W4

noun

The process of flowing out.

Opposite
Less commonScrabble 13

Meanings

nounoutflow (countable and uncountable, plural outflows)

plural outflows

  1. countableuncountableThe process of flowing out.

    Synonyms: effluence, efflux, effluxion

  2. countableuncountableA fluid that flows out.

    Borg’s home, which he built with his wife and two sons among tall conifers 33 years ago, overlooks the Nipigon River, an outflow from the lake of the same name.

    December 2020, Tim Folger, “North America’s most valuable resource is at risk”, in National Geographic
  3. countableuncountableAny outward movement.
    1 more example

    Both are basins in a limestone country without any outflow above ground: […] both are drained by subterranean channels which the water has worn or which earthquakes have opened up through the rock; and whenever these outlets are silted up or otherwise closed, what at other times is a plain becomes converted for the time being into a lake.

    1918, James George Frazer, Folk-Lore In The Old Testament, volume 1, page 163
  4. countableuncountableastronomyA stream of gaseous material emanating from an active galactic nucleus.
  5. countableuncountableThe part of a system that allows material to flow out.
  6. countableuncountablesewageSomething that flows out of a sewage treatment plant.
verboutflow (third-person singular simple present outflows, present participle outflowing, simple past and past participle outflowed)

present singular third person outflows · participle present outflowing · participle past outflowed · past outflowed

  1. intransitiveTo flow outward.

Synonyms & antonyms

nounThe process of flowing out.

More synonyms by meaning

nounthe discharge of a fluid from some container

nounthe process of flowing out

Opposite
Broader

nouna natural flow of ground water

Similar
Broader
geological formationformation

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Old Englishūtflōwan
  2. Middle Englishoutflowen
  3. Englishoutflow

From Middle English outflowen, from late Old English ūtflōwan (attested in the past tense as ūt flēow), equivalent to out- + flow. The noun is derived from the verb.

Full word history & related roots →

Translations

Bulgarian изтичане, изливане
  • изтичане (iztičane)Process of flowing out
  • изливане (izlivane)Process of flowing out
  • изтичам (iztičam)To flow outward
  • изливам се (izlivam se)To flow outward
Chinese Mandarin 流出, 外流
  • 流出 (liúchū)Process of flowing out
  • 外流 (wàiliú)Process of flowing out
Czech odtékání, odliv
  • odtékáníProcess of flowing out
  • odlivProcess of flowing out
  • odtokProcess of flowing out
  • výtokProcess of flowing out
  • odtékatTo flow outward
  • vytékatTo flow outward
Finnish ulosvirtaus
  • ulosvirtausProcess of flowing out
French sortie
  • sortieProcess of flowing out
German Abfluss
  • AbflussProcess of flowing out
Greek εκροή, εκρέω
  • εκροή (ekroḯ)Process of flowing out
  • εκρέω (ekréo)To flow outward
Japanese 流出
  • 流出 (ryūshutsu)Process of flowing out
Norwegian Bokmål utstrømming, utstrømning
  • utstrømmingProcess of flowing out
  • utstrømningProcess of flowing out
Portuguese saída, sair
  • saídaProcess of flowing out
  • sairTo flow outward
Russian отто́к
  • отто́к (ottók)Process of flowing out
Cite this entry
APA

outflow. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/outflow

MLA

“outflow.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/outflow. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “outflow,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/outflow.

Source: outflow on Wiktionary, CC BY-SA 4.0.