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• flag day
  flag day

  noun

  tag day.
• Flag Day
  Flag Day

  noun

  June 14, the anniversary of the day (June 14, 1777) when Congress adopted the Stars and Stripes as the national flag of the United States.

flag day

¹ American  

noun

(sometimes initial capital letters)

1. tag day.

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Flag Day ² American  

noun

1. June 14, the anniversary of the day (June 14, 1777) when Congress adopted the Stars and Stripes as the national flag of the United States.

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Flag Day ¹ British  

noun

1. June 14, the annual holiday in the US to celebrate the adoption in 1777 of the Stars and Stripes

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flag day ² British  

noun

1. a day on which money is collected by a charity and small flags, emblems, or stickers are given to contributors

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Etymology

Origin of flag day

First recorded in 1910–15

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Example Sentences

See Examples For:

flag day Flag Day

It was a red flag day with triple-digit temperatures and a strong, dry wind blowing from the south.

From Los Angeles Times ● Jul. 25, 2026

He skipped an annual ceremony on Sunday in Minsk for Belarus’s flag day, an event at which he usually speaks, leaving his prime minister to read a statement.

From New York Times ● May 15, 2023

Tuesday is Ukraine’s national flag day and Wednesday — Aug. 24 — is the celebration of independence from control by Moscow that the former Soviet Union republic declared in 1991.

From Seattle Times ● Aug. 22, 2022

"It was a red flag day the day of the fire, so there shouldn’t have been any burning."

From Fox News ● Jan. 2, 2022

Node:flag day, Next:flaky, Previous:flag, Up:= F = flag day n.

From The Jargon File, Version 4.2.2, 20 Aug 2000 by Guy L. Steele

The local authorities have set up stalls and put on a street concert to mark Russian Flag Day.

From BBC ● Aug. 21, 2026

“We do Flag Day real big up here,” notes one of many cheerful residents of Three Oaks, Mich., in a literally and figuratively flag-waving documentary about the immensely pleasing nature of small-town pride.

From The Wall Street Journal ● Jun. 11, 2026

That moment came courtesy of a guy wearing a Cubs uniform, but Monday grew up in Santa Monica and delivered his spontaneous commemoration of Flag Day in the year of America’s bicentennial.

From Los Angeles Times ● Apr. 19, 2026

The lightweight championship clash will top a bill of six fights set to take place on the US Flag Day holiday and the 80th birthday of President Donald Trump, who is an avowed UFC fan.

From Barron's ● Mar. 8, 2026

If by “celebrity,” you mean the guy who tosses candy from the back of a red convertible that leads Batavia’s annual Flag Day parade.

From "Love, Hate & Other Filters" by Samira Ahmed

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