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English definition of “ISA”

ISA

noun [C] uk   /ˈaɪ.sə/ us  
abbreviation for Individual Savings Account: a type of investment account in the UK in which the tax on income is lower than usual, and there is no tax on profits made from an increase in the value of sharesSaving and savings accounts
(Definition of ISA from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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