Meanings
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1
noun
the ship carrying the commander of a naval fleet and flying that commander's flag
The admiral directed the operation from the fleet's flagship.
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2
noun
the most important, prominent, or prestigious member of a group of products or institutions
The company unveiled its flagship phone at the annual conference.
Thesaurus
Etymology
A compound of flag + ship. It first named the vessel displaying a fleet commander's flag, then broadened to the leading or most prestigious product, store, institution, or other member of a group.