Standard Lemma guide

terawatt

noun · 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

noun

Meaning 1

One million million (1012) watts, an amount of power large enough to power an entire region with many cities. (Consuming 1 terawatt during a duration of 1 hour consumes 1 terawatt-hour of energy.).

Definition source: English Wiktionary via Wiktextract

Examples

  • Holonyms: PW, petawatt
  • Meronyms: mW, milliwatt < W, watt < kW, kilowatt < MW, megawatt < GW, gigawatt
  • As of 2025, it was estimated that all of the power stations on Earth were collectively generating about 15 terawatts at any given instant.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From tera- + watt.

Across languages

Translations

5 source translations are retained for this English entry.

  • Czech: terawatt — one million million ( 1012 ) watts, abbreviated as TW
  • Dutch: terawatt — one million million ( 1012 ) watts, abbreviated as TW
  • Finnish: terawatti — one million million ( 1012 ) watts, abbreviated as TW
  • French: térawatt — one million million ( 1012 ) watts, abbreviated as TW
  • German: Terawatt — one million million ( 1012 ) watts, abbreviated as TW