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  • green flag
    green flag
    noun
    (in automobile racing) a green-colored flag that is used to signal the start of a race.
  • Green Flag
    Green Flag
    noun
    an award given to a bathing beach that meets EU standards of cleanliness

green flag

American  

noun

  1. (in automobile racing) a green-colored flag that is used to signal the start of a race.


Green Flag British  

noun

  1. an award given to a bathing beach that meets EU standards of cleanliness

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

After racing resumed under a green flag, there were only four laps left and Rosenqvist had sunk to third.

From The Wall Street Journal • May 25, 2026

Actor and Indianapolis native Brendan Fraser will be the honorary starter and wave the green flag.

From Los Angeles Times • May 22, 2026

“I think if we can’t share that moment together, it’s a red flag. So, ‘I need coffee’ is a green flag.

From MarketWatch • Apr. 20, 2026

Each year, Bani Walid celebrates the anniversary of a 1969 coup that brought Gaddafi to power, with people parading through the streets with portraits of the ex-leader and Libya's green flag from before the revolt.

From Barron's • Feb. 6, 2026

So my plan is: Head south four kilometers, then search around till I see the green flag.

From "The Martian" by Andy Weir

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