union jack
noun
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.
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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.
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any flag the overall design of which is a union.
Union Jack
British
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
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
It gets to the heart of how many Britons' relationship with the union jack and the four nations' flags is complex.
From BBC ● Aug. 23, 2025
For more than a mile, almost every one has a St George's or union jack flag attached - thousands of them.
From BBC ● Aug. 23, 2025
The flagstaff from which floated the union jack, the emblem of law and order, was planted in such a position as to be plainly visible in the mining camp.
From The Moving Finger A Trotting Christmas Eve at Warwingie Lost! The Loss of the "Vanity" Dick Stanesby's Hutkeeper The Yanyilla Steeplechase A Digger's Christmas by Mary Gaunt
What is the Union Jack Classic and who is in it?
From BBC ● Sep. 18, 2026
The two-story brick building was repainted in Reform teal, a large picture of lions wearing Union Jack flags hung on one wall.
From The Wall Street Journal ● Jun. 22, 2026
More than 1,000 people -- many waving Union Jack and England flags -- attended Tuesday's protest.
From Barron's ● Jun. 3, 2026
For a long time public television was the sole entry port for British shows, and it still waves that Union Jack.
From Los Angeles Times ● Dec. 29, 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.
