Standard Lemma guide

zettabyte

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈzɛtəbaɪt/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

One sextillion (1021, or 1,000,000,000,000,000,000,000) bytes or 1,000 exabytes.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A zebibyte.

Definition source: English Wiktionary via Wiktextract

Usage: informal

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a unit of information equal to 1024 exbibytes or 2^70 bytes

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: zebibyte, ZB, ZiB

Antonyms: none provided

Broader terms: computer memory unit

4

noun

Meaning 4

a unit of information equal to 1000 exabytes or 10^21 bytes

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ZB

Antonyms: none provided

Broader terms: computer memory unit

History

Etymology

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 *bhéydt Proto-Germanic *bītaną Proto-West Germanic *bītan Old English bītan Middle English biten English bite English byte English zettabyte From zetta- + byte.

Across languages

Translations

18 source translations are retained for this English entry.

  • Arabic: زِيْتَابَايْت (ziytābāyt) — 270 or 1021 bytes
  • Chinese Mandarin: 澤字節 /泽字节 (zézìjié) — 270 or 1021 bytes
  • Chinese Mandarin: ZB — 270 or 1021 bytes
  • Esperanto: zetabajto — 270 or 1021 bytes
  • Esperanto: zetabitoko — 270 or 1021 bytes
  • Finnish: tsettatavu — 270 or 1021 bytes
  • Georgian: ზეტაბაიტი (zeṭabaiṭi) — 270 or 1021 bytes
  • German: Zettabyte — 270 or 1021 bytes
  • Japanese: ゼタバイト (zetabaito) — 270 or 1021 bytes
  • Japanese: ゼッタバイト (zettabaito) — 270 or 1021 bytes
  • Korean: 제타바이트 (jetabaiteu) — 270 or 1021 bytes
  • Macedonian: зетабајт (zetabajt) — 270 or 1021 bytes
  • Malay: zetabait — 270 or 1021 bytes
  • Navajo: bííłtsohʼííłké — 270 or 1021 bytes
  • Polish: zettabajt — 270 or 1021 bytes
  • Portuguese: zettabyte — 270 or 1021 bytes
  • Russian: зеттаба́йт (zɛttabájt) — 270 or 1021 bytes
  • Uyghur: زېتتابايت (zëttabayt) — 270 or 1021 bytes