Middle EnglishEdit

Alternative formsEdit


Inherited from Old English þunor, from Proto-Germanic *þunraz. The varieties with -d- are from the oblique stem of þunor, þunr-, which experienced a sound change -nr--ndr-; this was leveled into all forms of the word (compare Middle English gandre).


  • IPA(key): /ˈθundər/, /ˈθunər/


thonder (plural thondres)

  1. Thunder (loud noise created during a thunderstorm).
  2. A thunderstorm (storm which accompanies such a loud noise).
  3. Something which acoustically resembles thunder.
    • a. 1382, John Wycliffe, “Apocalips 6:1”, in Wycliffe's Bible:
      And Y ſai, that the lomb hadde openyd oon of the ſeuene ſeelis. And Y herde oon of the foure beeſtis ſeiynge, as a vois of thundur, Come, and ſe.
      And I noticed that the lamb had opened one of the seven seals, and I heard one of the four beasts saying, with a voice like thunder: "Come and see!"
  4. Lightning (especially in contexts referring to destruction)
  5. (rare) A threat or intimidation.

Related termsEdit


  • English: thunder
  • Scots: thuner, thunder, thundir
  • Yola: dunder