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Definitions

24/7

[twen-tee-fawr sev-uhn, ‑-fohr‑, twuhn-tee‑] / ˈtwɛn tiˌfɔr ˈsɛv ən, ‑ˌfoʊr‑, ˈtwʌn ti‑ /
ADJECTIVE
around-the-clock
Synonyms
STRONGEST
continuous endless interminable never-ending nonstop ongoing perpetual relentless round-the-clock unending uninterrupted
WEAK
all day and all night at all times ceaseless constant day-and-night eternal everlasting persistent timeless unceasing
Antonyms
STRONGEST
bounded ceasing completed discontinuous ending finished halting incontinuous intermittent interrupted stopping terminable transient

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Before passengers are put on the trains, the system must run 24/7 for 30 days “without any hiccups,” he said.

From Los Angeles Times • Apr. 16, 2026

Solar-powered sensors embedded within the snow pile monitor fluctuations in temperature 24/7.

From Slate • Apr. 11, 2026

"Their dust is deeply buried and watched 24/7," US Defence Secretary Pete Hegseth told reporters on Wednesday.

From BBC • Apr. 8, 2026

Crypto firms seek 24/7 blockchain stock trading, but the SEC’s exemption is expected to be incremental, a “proof of concept”.

From Barron's • Mar. 31, 2026

All the while, little cytoplasmic factories work 24/7, cranking out sugars, fats, proteins, and energy to keep the whole thing running and feed the nucleus—the brains of the operation.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot