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.
a common name for Union flag
(often not capitals) a national flag flown at the jackstaff of a vessel
First recorded in 1665–75
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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
And confetti cannons rained glitter over him as the brass bombast of Land of Hope and Glory rang out and a giant union jack appeared on the screen behind him.
From BBC ● Sep. 20, 2025
The St George's flag has sometimes had a closer association with English nationalists, and the union jack has been used frequently by mainstream political parties including the Tories and Labour.
From BBC ● Aug. 23, 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 Beach, Charles Amory
But wearing an England football scarf, Union Jack bucket hat and clutching a Paddington Bear, the showman energised a 75,000-strong, multi-generational crowd.
From BBC ● Jul. 19, 2026
More than 1,000 people -- many waving Union Jack and England flags -- attended Tuesday's protest.
From Barron's ● Jun. 3, 2026
Skating to the ‘90s classic “Wannabe,” she wears Ginger Spice’s Union Jack dress, while partner Lewis Gibson dons a sequined version of Scary Spice’s leopard print.
From The Wall Street Journal ● Feb. 9, 2026
Even BMW-Mini, a mass market manufacturer, is more than willing to wave the Union Jack – or rather, have it painted on door mirrors and roofs.
From BBC ● Aug. 12, 2025
He had missed the flagpole by an inch and would have plunged down to the pavement if his hands hadn’t caught hold of the Union Jack itself.
From "Stormbreaker" by Anthony Horowitz
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.
