thunder is on the Basic English 850 List.
thumb - thunder - ticket

Pronunciation

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Singular
thunder

Plural
none

(uncountable)

  1. Thunder is the sound made by lightning.
    He heard thunder in the distance.
  2. Thunder is a loud sound.
    The thunder of the train was very loud.
    The battlefield was full of the thunder of gunfire.
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Plain form
thunder

Third-person singular
thunders

Past tense
thundered

Past participle
thundered

Present participle
thundering

  1. To make a loud noise like thunder.
    The bowling ball thundered down the lane.