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warn

transitive verb

  1. to tell (a person) of a danger, coming evil, misfortune, etc.; put on guard; caution
  2. to caution about certain acts; admonish: warned against smoking in the building
  3. to notify in advance; inform
  4. to give notice to (a person) to stay or keep (off, away, etc.)

intransitive verb

to give warning

Related Forms:

See warn in American Heritage Dictionary 4

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