drain·​age | \ ˈdrā-nij How to pronounce drainage (audio) \

Definition of drainage

1 : the act, process, or mode of draining also : something drained off
2 : a device for draining : drain also : a system of drains
3 : an area or district drained

Examples of drainage in a Sentence

Recent Examples on the Web Divers have been searching for an 11-year-old child and two Milwaukee men who were swept into a drainage tunnel near 27th and Loomis after heavy rains Monday. CBS News, 14 June 2022 The 2022 budget for the city’s drainage levy fund is $2.4 million, Dean said. Bob Sandrick, cleveland, 13 June 2022 City water bills are calculated based on water usage, sewerage disposal, and flat service charges for water, sewerage and drainage. Nushrat Rahman And Malachi Barrett, Detroit Free Press, 13 June 2022 Site improvements include a mill and overlay of 4 inches of pavement, increasing the right-of-way in certain locations and rehabilitating drainage structures. Alex Groth, Journal Sentinel, 10 June 2022 The flood control plans include a handful of retention ponds, to hold water and then release it slowly, along with a huge drainage conduit, dubbed the North Tunnel, to carry water safely into the Patapsco. Steve Thompson, Washington Post, 10 June 2022 The Harappans of the Indus Valley Civilization went one better, building public drainage systems that enabled even ordinary dwellings to have bathrooms and toilets. Amanda Foreman, WSJ, 9 June 2022 Del Mar approves of the soldier piles and drainage ditches, but not the more than 2,000 linear feet of additional seawalls to be installed, Gaasterland said. Phil Diehl, San Diego Union-Tribune, 8 June 2022 Miami Beach Mayor Dan Gelber said the storm tested the system of drainage pumps the city has recently installed as climate change has increasingly made flooding an issue in the low-lying area. Richard Tribou, Orlando Sentinel, 6 June 2022 See More

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

First Known Use of drainage

1652, in the meaning defined at sense 1

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Time Traveler for drainage

Time Traveler

The first known use of drainage was in 1652

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Dictionary Entries Near drainage



drainage basin

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Statistics for drainage

Last Updated

17 Jun 2022

Cite this Entry

“Drainage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/drainage. Accessed 24 Jun. 2022.

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More Definitions for drainage


drain·​age | \ ˈdrā-nij How to pronounce drainage (audio) \

Kids Definition of drainage

: the act or process of removing a liquid Drainage of the flooded area has begun.


drain·​age | \ ˈdrā-nij How to pronounce drainage (audio) \

Medical Definition of drainage

1 : the act or process of drawing off fluids from a cavity or wound by means of suction or gravity
2 : a process of releasing internal conflicts or pent-up feelings (as hostility or guilt)

More from Merriam-Webster on drainage

Nglish: Translation of drainage for Spanish Speakers

Britannica English: Translation of drainage for Arabic Speakers

Britannica.com: Encyclopedia article about drainage


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