Definition of telltale

  1. telltale Noun One who divulges private information with intent to hurt others.
  2. telltale Noun Tattletale; squealer.
  3. telltale Noun Something that serves to reveal something else.
  4. telltale Noun A length of yarn or ribbon attached to a sail or shroud etc to indicate the direction of the flow of the air relative to the boat.
  5. telltale Adjective revealing something not intended to be known
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