tank
Americannoun
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a large receptacle, container, or structure for holding a liquid or gas.
tanks for storing oil.
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a natural or artificial pool, pond, or lake.
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Military. an armored, self-propelled combat vehicle, armed with cannon and machine guns and moving on a caterpillar tread.
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(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.
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Slang. a prison cell or enclosure for more than one occupant, as for prisoners awaiting a hearing.
verb (used with object)
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to put or store in a tank.
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(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)
verb phrase
idioms
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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.
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in the tank,
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failing, doing poorly, or declining.
His grades were in the tank last quarter.
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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.
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noun
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a large container or reservoir for the storage of liquids or gases
tanks for storing oil
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an armoured combat vehicle moving on tracks and armed with guns, etc, originally developed in World War I
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( as modifier )
a tank commander
a tank brigade
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dialect a reservoir, lake, or pond
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photog
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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
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any large dish or container used for processing a number of strips or sheets of film
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slang
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a jail
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a jail cell
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Also called: tankful. the quantity contained in a tank
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a dam formed by excavation
verb
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(tr) to put or keep in a tank
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(intr) to move like a tank, esp heavily and rapidly
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slang to defeat heavily
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informal (intr) to fail, esp commercially
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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tanksimple
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tankssimple
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have tankedperfect
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has tankedperfect
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am tankingprogressive
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are tankingprogressive
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is tankingprogressive
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have been tankingperfect progressive
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has been tankingperfect progressive
Past
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tankedsimple
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had tankedperfect
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was tankingprogressive
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were tankingprogressive
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had been tankingperfect progressive
Future
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.
Vocabulary lists containing tank
World War I
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"Modern Automotive Technology," Vocabulary from Section 4
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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:
Thinking the issue was water in the fuel tank, Mallon asked the bot for repair instructions.
From The Wall Street Journal ● Aug. 1, 2026
Every extra turn helps those shielded behind him, leaving more in the tank for the finish.
From BBC ● Jul. 30, 2026
The board singled out the persistent bombing of German oil and communications facilities as a factor that impeded the resupply of the Nazi tank army.
From Slate ● Jul. 30, 2026
“While the Fed held interest rates steady at this week’s meeting, it’s looking more and more like a rate increase is on the way soon,” said Young, a senior economist at the libertarian think tank.
From MarketWatch ● Jul. 29, 2026
In September, the British introduced their new weapon, the tank, without much success.
From "The War to End All Wars: World War I" by Russell Freedman
They describe daily movements of Israeli tanks, recurrent gunfire and the construction of tall sand embankments.
From BBC ● Jul. 30, 2026
These sacs act much like the ballast tanks of a submarine.
From Science Daily ● Jul. 27, 2026
Germany’s Rheinmetall talked of setting up three different factories, including one that its chief executive, Armin Papperger, said would be capable of churning out 400 new tanks a year.
From The Wall Street Journal ● Jul. 21, 2026
Storage tanks need a minimum amount of oil just to keep their pumps working; the industry calls it “tank bottoms.”
From MarketWatch ● Jul. 21, 2026
Thousands of KGB officers descended on Moscow, backed by troops and tanks.
From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau
After Warsh’s second press conference as Fed chief Wednesday, stocks tanked and bonds also reacted badly.
From MarketWatch ● Jul. 30, 2026
In early trade, Seoul's Kospi was up more than two percent -- having tanked around 20 percent from its June 19 record high -- boosted by rallies in SK hynix and Samsung.
From Barron's ● Jul. 3, 2026
You might want to lock in profits from a stock investment that has grown a lot, or sell something that tanked and use that loss for tax purposes to offset your gains.
From MarketWatch ● Jun. 25, 2026
But China resumed full-fledged exports within a few years, and prices tanked.
From The Wall Street Journal ● Jun. 18, 2026
“You’re right. I wasn’t honest with people. And before I knew it, the paper chain was taking off, and if I told the truth, it might have tanked the whole thing.”
From "Linked" by Gordon Korman
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
Even after he coughed up his lead in the third set, he attempted to spend some time recovering by tanking the fourth.
From The Wall Street Journal ● May 28, 2026
File this under “Folks who tried to reinvent themselves on reality TV after tanking in politics.”
From Los Angeles Times ● Mar. 26, 2026
Because of this remark, oil prices, which had been soaring, plummeted—and the stock market, which had been tanking, recovered much of the day’s losses.
From Slate ● Mar. 10, 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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
