Definition of fly the flag in English:

fly the flag

1(Of a ship) be registered in a particular country and sail under its flag.
More example sentences
  • At the time, all the major cruise lines were incorporated abroad, and every major ship they sailed flew the flag of a country other than the United States.
  • On 12 January 2003, the MV Dorine, a Polish bulk carrier flying the flag of Cyprus, berthed in Bell Bay, Launceston.
  • Two ships appeared on the horizon flying the flag that I was taught to be of Spain.
1.1 (also show or carry or wave the flag) Represent or demonstrate support for one’s country, political party, or organization, especially when one is abroad: he will never consider buying an import, because he likes to fly the flag
More example sentences
  • He is waving the flag to show his support for better relations between Canada and the United States.
  • By the same token, the Democratic Party will carry the flag of anti-clericism.
  • He missed the chance to wave the flag for all who do not identify with any party and are simply proud to be Irish.
See parent entry: flag

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Word of the day flagitious
Pronunciation: fləˈdʒɪʃəs
adjective
(of a person or their actions) criminal; villainous