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Pronunciation

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Homophones

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Singular
dam

Plural
dams

 
A dam
  1. (countable) A dam is like a wall used to hold back water. Usually, this is to block a river.
  2. (countable) A dam is a barrier like that used to hold back water, such as a dental dam.

Plain form
dam

Third-person singular
dams

Past tense
dammed

Past participle
dammed

Present participle
damming

  1. (transitive) If you dam a river you block it with a dam.