Standard Lemma guide

megahertz

noun · 2 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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  • CMU ARPABET: M EH1 G AH0 HH ER0 T S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A unit equal to one million cycles per second.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

one million periods per second

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: MHz, megacycle per second, megacycle, Mc

Antonyms: none provided

Broader terms: rate

History

Etymology

Etymology tree Proto-Indo-European *méǵh2s Proto-Hellenic *mégas Ancient Greek μέγᾰς (mégăs)der. English mega- English hertz English megahertz From mega- + hertz.

Across languages

Translations

16 source translations are retained for this English entry.

  • Arabic: مِيغَاهِرْتِز (miḡahirtiz) — one million cycles per second
  • Chinese Mandarin: 兆赫 (zhàohè) — one million cycles per second
  • Chinese Mandarin: 兆赫茲 /兆赫兹 (zhàohèzī) — one million cycles per second
  • Czech: megahertz — one million cycles per second
  • Finnish: megahertsi — one million cycles per second
  • Greek: μεγαχέρτζ (megachértz) — one million cycles per second
  • Italian: megahertz — one million cycles per second
  • Japanese: メガヘルツ (megaherutsu) — one million cycles per second
  • Korean: 메가헤르츠 (megahereucheu) — one million cycles per second
  • Portuguese: megahertz — one million cycles per second
  • Romanian: megahertz — one million cycles per second
  • Russian: мегаге́рц (megagérc) — one million cycles per second
  • Serbo-Croatian: мегахерц — one million cycles per second
  • Serbo-Croatian: megaherc — one million cycles per second
  • Swedish: megahertz — one million cycles per second
  • Vietnamese: mêga Hertz — one million cycles per second