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tank

American  
[tangk] / tæŋk /

noun

  • tanks
    plural
  1. a large receptacle, container, or structure for holding a liquid or gas.

    tanks for storing oil.

  2. a natural or artificial pool, pond, or lake.

  3. Military. an armored, self-propelled combat vehicle, armed with cannon and machine guns and moving on a caterpillar tread.

  4. (in a video game) a category of job classes in a role-playing game, best suited to withstand large amounts of damage from an enemy.

    The only decent tank in this game is Warrior, just because the cooldown period for the Paladin and Dark Knight skills is way too long.

  5. Slang. a prison cell or enclosure for more than one occupant, as for prisoners awaiting a hearing.

  6. tank top.


verb (used with object)

  • tanks,
    present (3rd person singular)
  • tanked,
    past participle,  past
  • tanking
    present participle
  1. to put or store in a tank.

  2. (in a video game) to provoke and hold the attention of (an enemy character) so that it does not target other player characters in the party who are less able to withstand large amounts of damage.

    If you’re properly tanking this boss, you’ll never let him face your mages.

verb (used without object)

  • tanks,
    present (3rd person singular)
  • tanked,
    past participle,  past
  • tanking
    present participle
  1. Slang. to do poorly or decline rapidly; fail.

    The movie tanked at the box office.

verb phrase

  1. tank up

    1. to fill the gas tank of an automobile or other motor vehicle.

    2. Slang. to drink a great quantity of alcoholic beverage, especially to intoxication.

idioms

  1. go in / into the tank, to go through the motions of a match but deliberately lose because of an illicit prearrangement or fix; throw a fight.

  2. in the tank,

    1. failing, doing poorly, or declining.

      His grades were in the tank last quarter.

    2. favoring, colluding, or assisting in a partisan way (often followed by with orfor ).

      The talk-show host was in the tank with the Green Party.

tank British  
/ tæŋk /

noun

  1. a large container or reservoir for the storage of liquids or gases

    tanks for storing oil

    1. an armoured combat vehicle moving on tracks and armed with guns, etc, originally developed in World War I

    2. ( as modifier )

      a tank commander

      a tank brigade

  2. dialect a reservoir, lake, or pond

  3. photog

    1. a light-tight container inside which a film can be processed in daylight, the solutions and rinsing waters being poured in and out without light entering

    2. any large dish or container used for processing a number of strips or sheets of film

  4. slang

    1. a jail

    2. a jail cell

  5. Also called: tankful.  the quantity contained in a tank

  6. a dam formed by excavation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to put or keep in a tank

  2. (intr) to move like a tank, esp heavily and rapidly

  3. slang to defeat heavily

  4. informal (intr) to fail, esp commercially

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
tank More Idioms  

    More idioms and phrases containing tank


Other Word Forms

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Etymology

Origin of tank

First recorded in 1610–20; perhaps jointly from Gujarati tānkh “reservoir, lake,” and Portuguese tanque, shortening of estanque “pond,” literally, “something dammed up,” derivative of estancar, from Vulgar Latin stanticāre (unattested) “to dam up, weaken”; adopted as a cover name for the military vehicle during the early stages of its manufacture in England (December 1915)

Explanation

A tank is a large container for gases or liquids, like a tank of oil. Another kind of tank is an armored military vehicle with a cannon. If you see that kind of tank driving down the road, run for cover! There are two main kinds of tanks. One kind is a container for water, oil, natural gas, or other liquids and gases. Some houses have fuel oil tanks outside or in the basement. The other kind of tank is a large powerful military vehicle. A tank — which has a cannon — rolls across the ground on treads and is heavily armored. Those tanks can roll right over cars and anything else they want to squish.

Keep Reading on Vocabulary.com

Vocabulary lists containing tank

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

As the fuel tank is within the chassis and therefore its size could not be changed, this meant those teams might not have been able to finish grands prix with their existing fuel tanks.

From BBC Sep. 21, 2026

My first full-time job was in the PR department of the Heritage Foundation, a Washington think tank, which I joined two months after Mr. Posner’s article appeared in 1988.

From The Wall Street Journal Sep. 18, 2026

“Kim’s major concern isn’t North Korean workers getting killed,” said Peter Ward, a research fellow at the Sejong Institute, a think tank in Seoul.

From The Wall Street Journal Sep. 18, 2026

"Canada right now seems more interested than the UK to get as close to Brussels as possible, as a non member state" says Mark Lowen, director of the European Council of Foreign Relations think tank.

From BBC Sep. 15, 2026

I’m too aware of how frizzy my ponytail might get and how much skin my tank top shows.

From "Keeping Pace" by Laurie Morrison

FFRDCs are government-funded, privately operated research centers that include private, non-profit think tanks and major research universities.

From MarketWatch Sep. 19, 2026

At the project in Esbjerg in the south west of Denmark, carbon captured from around the country arrives in huge zeppelin-like tanks before being pumped into a ship called Carbon Destroyer 1.

From BBC Sep. 18, 2026

Its lower mass also allowed the team to fill Roman's propellant tanks to capacity rather than carrying only enough fuel for the original 10-year mission.

From Science Daily Sep. 18, 2026

Spacious, chilly and cloaked in an earthy scent, they hold hundreds of oak barrels and several towering steel tanks full of maturing wine.

From Barron's Sep. 15, 2026

A retired police chief in New Haven, Connecticut, told The New York Times, “I was offered tanks, bazookas, anything I wanted.”

From "The New Jim Crow" by Michelle Alexander

The goofy, R-rated “Starship Troopers” famously tanked domestically among adults, but was a notable hit among teen boys, who sneaked into the flick in droves.

From Salon Sep. 9, 2026

The Lincoln’s extended deployment, already about three months longer than the typical carrier mission, appears to have tanked sailors’ morale.

From Slate Aug. 14, 2026

“On Running has been having year-over-year growth that is unseen, and they still get tanked when earnings come through.”

From Los Angeles Times Aug. 4, 2026

After Warsh’s second press conference as Fed chief Wednesday, stocks tanked and bonds also reacted badly.

From MarketWatch Jul. 30, 2026

I clicked up some history on the area, heavily industrial, at least until the economy tanked.

From "Burning Blue" by Paul Griffin

Advisers don’t see the recent bond selloff as a red flag indicating a tanking economy.

From MarketWatch Aug. 31, 2026

This week: Situational Awareness—an A.I.-forward hedge fund led by a former wunderkind and OpenAI employee—was tanking fast until a rival fund stepped in.

From Slate Aug. 1, 2026

Suu Kyi travelled to The Hague to rebut charges of genocide against them at the UN's top court in 2019 -- tanking her reputation on the international circuit.

From Barron's Apr. 30, 2026

Sales of Chrysler’s gas-guzzling coupes and sedans were tanking.

From The Wall Street Journal Apr. 4, 2026

The stocks of Morgan Stanley and Goldman Sachs were tanking, and it was clear that nothing short of the U.S. government could save them.

From "The Big Short" by Michael Lewis

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