a large container for storing liquid or gas, an armored fighting vehicle designed for front-line combat and armed with heavy firepower, to fail completely, especially at great financial cost

go down the tank, in the tank, empty the tank

think tank, septic tank, fish tank

Formal and Informal Expressions of tank

In different contexts, you can replace 'tank' with suitable alternatives. In a more formal setting, 'container, reservoir' is apt. In informal speech or writing, 'big gun, beater, flop' is a commonplace synonym.

tank: Explore its Definition & Usage

tank Definition

1a large container for storing liquid or gas
2an armored fighting vehicle designed for front-line combat and armed with heavy firepower
3to fail completely, especially at great financial cost

Using tank: Examples

Take a moment to familiarize yourself with how "tank" can be used in various situations through the following examples!

Example
The fish tank needs to be cleaned.
Example
The gas tank is almost empty.
Example
The army sent tanks to the front lines.
Example
The company's new product was a total tank.
Example
The movie tanked at the box office.

tank Synonyms and Antonyms

Synonyms for tank

container
reservoir
cistern
failure
fiasco
disaster
armored vehicle
combat vehicle

Idioms Using tank

go down the tank
to fail or be ruined
Example
The company's profits went down the tank after the CEO resigned.
in the tank
in a state of decline or failure
Example
The team's season is in the tank after losing their star player to injury.
empty the tank
to give all of one's effort or energy
Example
The athlete emptied the tank in the final stretch of the race and won by a nose.

Phrases with tank

think tank
a group of experts who provide advice and ideas on political, social, or economic issues
Example
The government commissioned a think tank to study the impact of climate change on the economy.
septic tank
an underground tank where sewage is collected and allowed to decompose through bacterial activity before draining by means of a septic system
Example
The septic tank needs to be pumped out every few years.
fish tank
a glass or plastic container used for keeping fish as pets
Example
The fish tank needs to be cleaned regularly to keep the fish healthy.

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Summary: tank in Brief

The term 'tank' [tæŋk] has multiple meanings. It can refer to a large container for storing liquid or gas, such as a fish tank or gas tank. It can also refer to an armored fighting vehicle used in combat. Additionally, it can mean to fail completely, as in 'The company's new product was a total tank.' Other idiomatic expressions include 'go down the tank,' meaning to fail or be ruined, and 'empty the tank,' meaning to give all of one's effort or energy.