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English definition of “tank”

tank

noun [C] uk   /tæŋk/ us  

tank noun [C] (CONTAINER)

C2 a container that holds liquid or gas: a water tank a fuel/petrol tank

tank noun [C] (VEHICLE)

C1 a large military fighting vehicle designed to protect those inside it from attack, driven by wheels that turn inside moving metal belts

tank noun [C] (POOL)

Indian English an artificial pool or lake, especially a lake for supplying water to an area

tank

verb [I] uk   /tæŋk/ informal us  
to go down in price, value, etc., or to become less successful: The state was expecting an increase in tax revenues, but that was before the economy tanked. Car exports in the year to April tanked 23 percent.
(Definition of tank from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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