drain

American  

[dreyn] / dreɪn /

verb (used with object)

1. to withdraw or draw off (a liquid) gradually; remove slowly or by degrees, as by filtration.

   to drain oil from a crankcase.

2. to withdraw liquid gradually from; make empty or dry by drawing off liquid.

   to drain a crankcase.

3. to exhaust the resources of.

   to drain the treasury.

4. to deprive of strength; tire.

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verb (used without object)

1. to flow off gradually.

2. to become empty or dry by the gradual flowing off of liquid or moisture.

   This land drains into the Mississippi.

noun

1. something, as a pipe or conduit, by which a liquid drains.

2. Surgery. a material or appliance for maintaining the opening of a wound to permit free exit of fluids.

3. gradual or continuous outflow, withdrawal, or expenditure.

4. something that causes a large or continuous outflow, expenditure, or depletion.

   Medical expenses were a major drain on his bank account.

5. an act of draining.

6. Physical Geography.

   1. an artificial watercourse, as a ditch or trench.

   2. a natural watercourse modified to increase its flow of water.

idioms

1. go down the drain,

   1. to become worthless or profitless.

   2. to go out of existence; disappear.

drain British  

/ dreɪn /

noun

1. a pipe or channel that carries off water, sewage, etc

2. an instance or cause of continuous diminution in resources or energy; depletion

3. surgery a device, such as a tube, for insertion into a wound, incision, or bodily cavity to drain off pus, etc

4. electronics the electrode region in a field-effect transistor into which majority carriers flow from the interelectrode conductivity channel

5. wasted

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verb

1. to draw off or remove (liquid) from

   to drain water from vegetables

   to drain vegetables

2. to flow (away) or filter (off)

3. (intr) to dry or be emptied as a result of liquid running off or flowing away

   leave the dishes to drain

4. (tr) to drink the entire contents of (a glass, cup, etc)

5. (tr) to consume or make constant demands on (resources, energy, etc); exhaust; sap

6. (intr) to disappear or leave, esp gradually

   the colour drained from his face

7. (tr) (of a river, etc) to carry off the surface water from (an area)

8. (intr) (of an area) to discharge its surface water into rivers, streams, etc

drain More Idioms  

1. see brain drain; down the drain.

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Other Word Forms

• drainable adjective
• drainer noun
• overdrain verb
• undrainable adjective
• undrained adjective
• well-drained adjective

Etymology

Origin of drain

before 1000; Middle English dreynen, Old English drēhnian, drēahnian to strain, filter; akin to dry

Example Sentences

The team examined a region of Alaska's North Slope roughly the size of Wisconsin, where hundreds of rivers and streams drain into the Beaufort Sea.

From Science Daily • Apr. 4, 2026

"Sure, AI data centres consume massive amounts of energy, contribute to air pollution, and drain the water supply from local communities," Forcino said.

From Barron's • Apr. 3, 2026

Another user, talking about bugs that can form in the code created, commented "One session in a loop can drain your daily budget in minutes".

From BBC • Apr. 1, 2026

Around 9 a.m., sanitation workers were maneuvering what appeared to be a massive vacuum hose inside the drain, hoovering up debris before the manhole cover could be sealed.

From Los Angeles Times • Mar. 25, 2026

I feel the blood drain from my face.

From "Blood on the River" by Elisa Carbone

Related Words

• bleed
• consume
• deplete
• diminish
• divert
• dry
• empty
• exhaust
• pump
• reduce
• sap
• siphon
• strain
• suck
• tap
• use up