or 24‐7, 24×7, twen·ty-four sev·en

[ twen-tee-fawr sev-uh n, ‐fohr‐, twuhn-tee‐ ]
/ ˈtwɛn tiˌfɔr ˈsɛv ən, ‐ˌfoʊr‐, ˈtwʌn ti‐ /


continually; constantly: They're together 24/7.


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

Nearby words

  1. 2-naphthol,
  2. 2-phenoxyethanol,
  3. 2.0,
  4. 21-hydroxyprogesterone,
  5. 24-7,
  6. 25-hydroxycholecalciferol,
  7. 2d,
  8. 2d animation,
  9. 2d bar code,
  10. 2g

Origin of 24/7

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. 2019

Culture definitions for twenty-four seven


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.