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blue peter

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noun Nautical.
a blue flag with a white square in the center, designating the letter P in the International Code of Signals, flown by a vessel in port to indicate its imminent departure.
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Which of the following words describes “sky blue”?
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Origin of blue peter

First recorded in 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use blue peter in a sentence

British Dictionary definitions for blue peter

blue peter

noun
a signal flag of blue with a white square at the centre, displayed by a vessel about to leave port

Word Origin for blue peter

C19: from the name Peter
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
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