-
union jack
union jacknouna jack consisting of the union of a national flag or ensign, as the U.S. jack, which has the white stars and blue field of the union of the U.S. national flag.
-
Union Jack
union jack
Americannoun
-
a jack consisting of the union of a national flag or ensign, as the U.S. jack, which has the white stars and blue field of the union of the U.S. national flag.
-
(often initial capital letter) the British national flag.
-
any flag the overall design of which is a union.
noun
-
a common name for Union flag
-
(often not capitals) a national flag flown at the jackstaff of a vessel
Etymology
Origin of union jack
First recorded in 1665–75
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
People of all ages carried the union jack and took photographs of the King.
From BBC ● May 1, 2026
And yet, in a parallel world, it could have been the red, white and blue of the union jack flying in her honour, and not that of the French flag.
From BBC ● Feb. 18, 2026
The Reform UK-led authority's £75,000 project started in December, with 164 union jack flags being fixed to lamp-posts in 82 areas across Nottinghamshire.
From BBC ● Jan. 7, 2026
Initially, 164 union jack flags will be displayed at a cost of about £457 per flag including brackets, traffic management and cherry pickers.
From BBC ● Oct. 24, 2025
The stars and stripes were seen floating from many staffs, mingled with the tricolor of France and the English union jack.
From Air Service Boys Over The Rhine Fighting Above The Clouds by Charles Amory Beach
More than 1,000 people -- many waving Union Jack and England flags -- attended Tuesday's protest.
From Barron's ● Jun. 3, 2026
The Union Jack waved in the night sky Thursday from one of the tallest heights of New York City.
From The Wall Street Journal ● Nov. 21, 2025
St George's and Union Jack flags have been increasingly found lining streets across England.
From BBC ● Aug. 28, 2025
Bathory also dressed the part, drawing attention for his Def Leppard T-shirt with the Union Jack flag, studded leather jackets and belts, and long hair.
From Los Angeles Times ● Jul. 19, 2025
This summer isn't green; this summer is the red, white, and blue of the Union Jack.
From "Black Swan Green" by David Mitchell
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.