union jack

noun

Definition of union jack 

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

AJ McLean was Scary Spice in fierce cheetah print, Brian Littrell was Sporty Spice in track pants and Howie Dorough was Ginger Spice in a union jack dress. Sara M Moniuszko, USA TODAY, "The Backstreet Boys dressed as the Spice Girls to celebrate 'girl power'," 9 May 2018 Feel free to turn your home into a literal union jack even. Lisa Ryan, The Cut, "How to Host the Ultimate Royal Wedding Viewing Party," 9 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'union jack.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of union jack

1674, in the meaning defined at sense 1

Keep scrolling for more

Learn More about union jack

Share union jack

Statistics for union jack

Look-up Popularity

Time Traveler for union jack

The first known use of union jack was in 1674

See more words from the same year

More from Merriam-Webster on union jack

Britannica.com: Encyclopedia article about union jack

Comments on union jack

What made you want to look up union jack? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to clear from alleged fault or guilt

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!