Longman Dictionary English From Longman Business DictionaryRelated topics: Finance, Organizations, ComputersInternational Securities ExchangeˌInternational Seˈcurities Exˌchange abbreviation ISE noun FINANCEORGANIZATIONSa system that allows people to trade OPTIONs (=the right to buy or sell shares, bonds, currencies etc) at a particular price using a computer ldoceonline.com