ISA

 Longman Dictionary of Contemporary English Online朗文当代英语 5++LDOCE Online朗文 5++ISA /ˈaɪsə, ˌaɪ es ˈeɪ/  (Individual Savings Account) a tax-free savings plan, introduced by Britain’s Labour government in 1999From Longman Business DictionaryISAISA /ˈaɪsə/ noun [countable]FINANCE individual savings account; a savings arrangement in Britain on which you do not have to pay taxISAs encourage people to leave their savings in the account on a long-term basis. → cash ISA → equity ISA → maxi-ISA → mini-ISA

ISA  

Business plan, by Savings Labour (Individual Britain’s introduced savings tax-free a Account)

ISA
ISA /ˈaɪsə, ˌaɪ es ˈeɪ/
abbreviation for Individual Savings Account; a tax-free savings plan, introduced by Britain’s Labour government in 1999 to replace PEPs