Standard Lemma guide

exa-

prefix · 1 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

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1

prefix

Meaning 1

In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 1018 (a short scale quintillion or long scale trillion); one million million million.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Ancient Greek ἕξ (héx, “six”), for the sixth order of 103, analogous to tera-.

Across languages

Translations

24 source translations are retained for this English entry.

  • Bulgarian: екса- (eksa-) — SI prefix
  • Chinese Cantonese: 艾- (ngaai6) — SI prefix
  • Chinese Mandarin: 艾- (ài-) — SI prefix
  • Chinese Mandarin: 艾可薩- /艾可萨- (àikěsà-) — SI prefix
  • Czech: exa- — SI prefix
  • Dutch: exa- — SI prefix
  • Esperanto: eksa- — SI prefix
  • Finnish: eksa- — SI prefix
  • French: exa- — SI prefix
  • Galician: exa- — SI prefix
  • German: exa- — SI prefix
  • Greek: εξα- (exa-) — SI prefix
  • Hungarian: exa- — SI prefix
  • Indonesian: eksa- — SI prefix
  • Japanese: エクサ (ekusa) — SI prefix
  • Korean: 엑사- (eksa-) — SI prefix
  • Malay: eksa- — SI prefix
  • Polish: eksa- — SI prefix
  • Portuguese: exa- — SI prefix
  • Russian: экза- (ekza-) — SI prefix
  • Russian: экса- (eksa-) — SI prefix
  • Spanish: exa- — SI prefix
  • Thai: เอกซะ- (èek-sà) — SI prefix
  • Vietnamese: ê-xa — SI prefix