Word Pronunciation & Dictionary

zero-day

Word Rarity Uncommon

Frequency: 4.61 in modern English

Syllables
ze-ro--day
IPA
20
Scrabble Score
7
Letters
4
Syllables
7
Unique Chars

Meaning

adj

Of an exploit or its threat or an attack, benefiting from a newly found and yet unpatched or unmitigated flaw in software or hardware; using a zero-day vulnerability.

adj

Used other than figuratively or idiomatically: see zero, day.

noun

A vulnerability that has been discovered recently, and is yet unpatched or unmitigated; a zero-day vulnerability.

noun

A day without obligations, where one does not worry about being productive.

Example Sentences

Inflected Forms

Questions

What does zero-day mean?
Of warez, released less than a day after the official product release.

How to pronounce zero-day

  1. Open the pronunciation page — Open the Speakur entry for “zero-day”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “zero-day”.
  4. Repeat and practice — Say “zero-day” aloud, matching stress and vowels until it feels natural.