blue peter definition

  • noun:
    • Nautical A blue banner with a white square in the center, flown to signal that a ship is ready to sail.
    • A blue signal flag with a white rectangle at the heart, signifying "P". When flown alone, indicates that a ship is able to sail, calling for all team people and passengers to go back agreeable.

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  • Definition for "blue peter"
    • Nautical A blue banner with a white square…
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