0-day

A form of zero-day — Of warez, released less than a day after the official product release.

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Meanings

adjective0-day (not comparable)
  1. alternativenot comparablecomputingAlternative spelling of zero-day.
noun0-day (plural 0-days)

plural 0-days

  1. alternativecomputingAlternative spelling of zero-day.
Cite this entry
APA

0-day. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/0-day

MLA

“0-day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/0-day. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “0-day,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/0-day.

Source: 0-day on Wiktionary, CC BY-SA 4.0.