Standard Lemma guide

terawatt-hour

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

A unit of energy equal to that provided by one terawatt acting for one hour.

Definition source: English Wiktionary via Wiktextract

Examples

  • Holonym: terawatt-year
  • Meronyms: milliwatt-hour < watt-hour < kilowatt-hour < megawatt-hour < gigawatt-hour

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

By surface analysis, terawatt + hour, or, by surface analysis, tera- + watt-hour.

Across languages

Translations

4 source translations are retained for this English entry.

  • Finnish: terawattitunti — unit of electrical energy
  • German: Terawattstunde — unit of electrical energy
  • Italian: terawattora — unit of electrical energy
  • Swedish: terawattimme — unit of electrical energy