\ˈtrü-ˈblü \

Definition of true-blue 

(Entry 1 of 2)

1 : marked by unswerving loyalty (as to a party)

2 : genuine a true-blue romantic

true blue


Definition of true blue (Entry 2 of 2)

: a person who is true-blue

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Examples of true-blue in a Sentence

Recent Examples on the Web: Noun

Her shade picks: St. Tropez Sunset, a shiny pinky coral and Iconic Red, a matte true blue-red. Meg Hemphill, The Hollywood Reporter, "Karl Lagerfeld + ModelCo Makeup Drops Today," 14 May 2018 Tonight's full moon won't be blue, but there have been true blue moons in the past, according to NASA. Leigh Morgan,, "Blue moon 2018: Second -- and last -- blue moon of year rises tonight," 1 Dec. 2017 But a decade ago, Diehl, now a leading candidate for his party’s US Senate nomination, was voting true blue. Frank Phillips,, "GOP candidate Geoff Diehl once voted true blue," 13 Mar. 2018 But the return for Cole felt light, and McCutchen’s trade didn’t bring back any true blue-chippers either. Jon Tayler,, "The Pirates Continue Their Teardown by Trading Andrew McCutchen to the Giants," 15 Jan. 2018 Beyond the logistical constraints, any attempts to change the tax code are also riddled with political uncertainty, even in a true blue state like New York. Vivian Wang And Jesse Mckinley, New York Times, "Saying You Want to Reform the Tax Code? Easy. Doing It? Less So.," 18 Jan. 2018 But a true blue-chip addition to Chicago’s core isn’t coming by any means other than the draft. Jeremy Woo,, "Are the Bulls Losing Long-Term by Winning Now?," 20 Dec. 2017 Trump won nearly 70 percent of the vote in three Mount Greenwood precincts, making the area the president's top stronghold in true blue Chicago. Jake Malooley, Chicago Reader, "Mount Greenwood is Chicago's Upside Down," 21 Dec. 2017 But, underneath his moronic exterior, Jerry is true blue. Dean Martin And Jerry Lewis, The Hollywood Reporter, "When Dean Martin and Jerry Lewis Made a Name for Themselves," 29 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'true-blue.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of true-blue


circa 1636, in the meaning defined at sense 1


1647, in the meaning defined above

History and Etymology for true-blue


from the association of blue with constancy

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Statistics for true-blue

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Time Traveler for true-blue

The first known use of true-blue was circa 1636

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More Definitions for true-blue



English Language Learners Definition of true-blue

: completely faithful and loyal to a person or an idea

: loyal to the ideas of the British Conservative party



Kids Definition of true-blue

: very faithful

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More from Merriam-Webster on true-blue

Thesaurus: All synonyms and antonyms for true-blue

Spanish Central: Translation of true-blue

Nglish: Translation of true-blue for Spanish Speakers

Comments on true-blue

What made you want to look up true-blue? Please tell us where you read or heard it (including the quote, if possible).


by force of circumstances

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