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true blue

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See synonyms for: true blue / true blues on Thesaurus.com

noun
a nonfading blue dye or pigment.
a person who is true-blue.
(in the 17th century) the color adopted by the Covenanters in contradistinction to the royal red.
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Origin of true blue

First recorded in 1665–75

Other definitions for true blue (2 of 2)

true-blue
[ troo-bloo ]
/ ˈtruˈblu /

adjective
unwaveringly loyal or faithful; staunch; unchangingly true.

Origin of true-blue

First recorded in 1665–75; origin uncertain; perhaps associated with the Covenanters (Scottish Presbyterians) of the 17th century, whose flag, a white St. Andrew’s Cross on a blue field (still the national flag of Scotland), was in opposition to the red scarves of the Royalist cavalry
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use true blue in a sentence

British Dictionary definitions for true blue

true-blue

adjective
unwaveringly or staunchly loyal, esp to a person, a cause, etc
noun true blue
mainly British a staunch royalist or Conservative
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

Other Idioms and Phrases with true blue

true blue

Loyal, faithful, as in You can count on her support; she's true blue. This expression alludes to the idea of blue being the color of constancy, but the exact allusion is disputed. One theory holds it alludes to the unchanging blue sky, another to the fastness of a blue dye that will not run. Blue has been the identifying color of various factions in history. In the mid-1600s the Scottish Covenanters, who pledged to uphold Presbyterianism, were called true blue (as opposed to red, the color of the royalists). In the 1800s the same term came to mean “staunchly Tory,” and in America, “politically sound.”

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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