BFMONEYa document that you buy from the government in Britain, which gives you the chance to win a large amount of money each month 〔英国政府发行的〕溢价债券
Examples from the Corpus
premium bond• Any small inheritance, gift, premium bond prize or money from occasional jobs should not be included.• Capital Choice, a single premium bond.
From Longman Business Dictionary
Premium BondˈPremium ˌBond noun [countableC usually plural]FINANCE
a numbered document that you buy from the government in Britain, which gives you the chance to win money each month and for which you can get back the money you bought it for