How to Pronounce Zero-day

To pronounce "zero-day", say ZER-od-ay — 3 syllables. Tap play below to hear it in four English accents, or practice it syllable by syllable.

zero-day

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Accent

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Syllables

Letters

ZER-od-ay

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"zero-day" has 3 syllables: zer-od-ay.

noun

Vulnerability that has been discovered recently, and is yet unpatched or unmitigated; zero-day vulnerability
“All the four zero-days originally were reported to Microsoft, affecting Internet Explorer on the desktop.”

adjective

(of vulnerability) newly discovered, and therefore still not fixed and possibly exploited by hackers or other criminals
(of exploit, its threat, or attack) benefiting from newly found and yet unpatched or unmitigated flaw in software or hardware; using zero-day vulnerability

How many syllables are in "zero-day"?▾

"Zero-day" has 3 syllables: zer · od · ay.

What does "zero-day" mean?▾

Zero-day: Vulnerability that has been discovered recently, and is yet unpatched or unmitigated; zero-day vulnerability

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