24/7

or 24‐7, 24×7, twen·ty-four sev·en

[ twen-tee-fawr sev-uhn, ‐fohr‐, twuhn-tee‐ ]
See synonyms for 24/7 on Thesaurus.com
adverb
  1. continually; constantly: They're together 24/7.

adjective
  1. continual; constant: The manufacturer offers 24/7 customer support.

Origin of 24/7

1
First recorded in 1985–90; shortening of twenty-four hours a day, seven days a week

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use 24/7 in a sentence

  • Simultaneously, the T-247 rolled, and from her broke every possible stream of destruction.

    The Ultimate Weapon | John Wood Campbell
  • Space pirates in a large ship had attacked the T-247, he said, and carried it away.

    The Ultimate Weapon | John Wood Campbell
  • The gigantic ship across the way turned slowly, and seemed to stare at the T-247.

    The Ultimate Weapon | John Wood Campbell
  • The T-247 spun on her axis, and abruptly the acceleration built up as the ion-rockets began to shudder.

    The Ultimate Weapon | John Wood Campbell
  • He depressed a lever, and a sudden smooth push shot them away from the T-247.

    The Ultimate Weapon | John Wood Campbell

Cultural definitions for 24/7

24/7

Twenty-four hours a day, seven days a week: “This convenience store is open 24/7.” The term, which also appears as “24-7,” can be used figuratively to mean “with great time and effort”: “We worked on the design 24/7 in order to complete the work on time.” This phrase was coined in the late twentieth century.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.