24/7

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‐ /
Slang.

adverb

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

adjective

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

Origin of 24/7

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

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.