flagship
noun [ C ] uk/ˈflæɡ.ʃɪp/ us/ˈflæɡ.ʃɪp/
(BEST PRODUCT)
（某机构的）旗舰产品，最重要理念，主建筑物
the best or most important product, idea, building, etc. that an organization owns or produces
This machine is the flagship in our new range of computers. 这台机器是我们新计算机系列的主打产品。
The company's flagship store is in New York. 这家公司的旗舰店在纽约。
(SHIP)
旗舰
the ship within a group on which the most important officer sails