n
1 ship which has the commander of a fleet on board 旗舰.
2 (fig 比喻) most important of a group of products, projects, services, etc （一批产品、工程、服务设施等中）最重要者
*This dictionary is the flagship of Oxford's range of learners' dictionaries. 本词典执牛津一系列学习者词典之牛耳.

n[C]
the most important ship in a group of ships belonging to the navy
[usually singular]
the best and most important product, building etc that a company owns or produces
　the flagship of the new Ford range
　The firm has just opened a flagship store in Las Vegas.
　the company's flagship product