Definition of "flag carrier" []

• A person carrying a standard or flag, usually at sporting events and parades, previously on the battlefield. (noun)
• A transportation company, such as a shipping or airline company, that is registered in a given state (noun)
• A strong supporter of a cause, or perhaps the strongest and most visible supporter of said cause. (noun)
• A national airline (typically having the flag, or other national insignia, on the tail) (noun)
• An aircraft carrier serving as a flagship (noun)

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