union jack

noun

1
: a jack consisting of the union of a national ensign
2
capitalized U&J : the state flag of the United Kingdom consisting of the union of the British national ensign

Examples of union jack in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In line with the Princess of Wales' attire, the Duchess of Edinburgh also donned a blue and red cape over her gown, a nod to the colors of the union jack. Roxanne Adamiyatt, Town & Country, 7 May 2023 One dessert that stands out from all the cupcakes, cookies and biscuits decorated with crowns and union jacks is the Jack Russel cake, which brings to mind the king and queen consort's two Jack Russell terriers. Karina Zaiets, USA Today, 28 Apr. 2023

Word History

First Known Use

1674, in the meaning defined at sense 1

Time Traveler
The first known use of union jack was in 1674

Dictionary Entries Near union jack

Cite this Entry

“Union jack.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/union%20jack. Accessed 24 Jan. 2025.

Kids Definition

union jack

noun
1
: a flag consisting of the part of a national flag that signifies union
especially : a U.S. flag consisting of a blue field with one white star for each state
2
capitalized U&J : the state flag of the United Kingdom

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