zettabyte.
One sextillion (10²¹, or 1,000,000,000,000,000,000,000) bytes or 1,000 exabytes.
Meaning & usage
One sextillion (10²¹, or 1,000,000,000,000,000,000,000) bytes or 1,000 exabytes.
A zebibyte.
Where this word comes from
Etymology tree Proto-Afroasiatic *sṗɣ? Proto-Semitic *šabʕ-bor.? Proto-Indo-European *septḿ̥ Proto-Italic *septəm Latin septemder. ▲ Proto-Indo-European *septḿ̥ Proto-Hellenic *heptə́ Ancient Greek ἑπτᾰ́ (heptắ)der. English zetta- Proto-Indo-European *bʰeyd- Proto-Indo-European *-t Proto-Indo-European *bʰéydt Proto-Germanic *bītaną Proto-West Germanic *bītan Old English bītan Middle English biten English bite English byte English zettabyte From zetta- + byte.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.