Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “tank”


verb [I]     /tæŋk/ informal
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 .Becoming and making smaller or lessBecoming and making less strong
(Definition of tank verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of tank

Definitions of “tank” in other dictionaries

Word of the Day


the art and knowledge involved in preparing and eating good food

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More