A flagship is the most important ship in a fleet of ships, especially the one on which the commander of the fleet is sailing.
N-COUNT
王牌;主打产品;旗舰产品
The flagship of a group of things that are owned or produced by a particular organization is the most important one.
例句
The hospital has been the government's flagship, leading the health service reforms...这家医院一直是政府的旗舰机构，引领着医疗服务的改革。The company plans to open a flagship store in New York this month.公司计划本月在纽约开一家旗舰店。