union jack

noun

1. 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.
2. (often initial capital letter) the British national flag.
3. any flag the overall design of which is a union.

Union Jack

noun

1. a common name for Union flag
2. often not capitals a national flag flown at the jackstaff of a vessel

Word History and Origins

Origin of union jack¹

First recorded in 1665–75

Example Sentences

By the time they hung up their Union Jack dresses in 2000, the Spice Girls had sold over 55 million records worldwide.

From The Daily Beast

They drove the Union Jack-branded Mini the short distance from the Brandenburg Gate to the British Embassy.

From The Daily Beast

The Queen and James Bond jumped out of a helicopter in Union Jack parachutes!

From The Daily Beast

And there were booties, a cropped leather jacket, an Alexander McQueen skull scarf and glittering Union Jack clutch.

From The Daily Beast

The Turner Prize-winning duo reinterprets the Union Jack for their largest show to date in Berlin and Paris.

From The Daily Beast

The citadel was therefore rapidly entered, and the union-jack displayed on the walls.

From Project Gutenberg

No doubt the apparition in the bay of a force flying the tricolor and the union-jack frightened the people.

From Project Gutenberg

The Union-jack floats over it, the State of Maine is its next-door neighbor, and fish and fog are its principal productions.

From Project Gutenberg

The Union Jack of England was soon run up in answer, and followed by a shot.

From Project Gutenberg

A minute later the wireless mast at the top of the airship met his view, with its tiny fluttering Union Jack attached to it.

From Project Gutenberg