24-7 Definition
twĕntē-fôr-sĕvən, -fōr-
adverb
Continuously; unceasingly.
American Heritage
Twenty-four hours a day and seven days a week; continuous(ly)
Webster's New World
Twenty-four hours a day, seven days a week; continuously.
That store is open 24-7
Wiktionary
symbol
The cardinal number twenty-four.
Wiktionary
noun
(paper) Abbreviation of vicesimo-quarto, a page size (3.5"-4.5" x 4.9"-5.9").
Wiktionary
(printing) Abbreviation of vicesimo-quarto, a book size using vicesimo-quarto-sized pages.
Wiktionary
Synonyms:
- two dozen
- xxiv
- twenty-four
Origin of 24-7
Short for 24 hours a day, 7 days a week
From American Heritage Dictionary of the English Language, 5th Edition
