From Longman Business Dictionaryhigh flyerˌhigh ˈflyer (also high flier) noun [countable]1an extremely successful person, organization etcRetailing is not generally the first career choice of young high fliers.The group was a high flier in the 1980s when it expanded rapidly through acquisitions, but profits later collapsed.2FINANCE shares or other investments that are doing well on the stock exchangeOther high fliers included water and electricity shares. —high-flying adjectiveHigh-flying tech stocks continued surrendering some of the gains they’ve made since the beginning of the year.