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tar (EN)
noun, verb

noun “tar”

singular tar, plural tars or uncountable
  1. a thick, black, sticky liquid from coal, used for road surfaces and hardens when it cools
    The workers spread hot tar on the road to fill the cracks and make it smooth again.
  2. a sticky substance produced when smoking tobacco
    The doctor explained that smoking can cause a buildup of tar in the lungs.

verb “tar”

infinitive tar; he tars; past tense tarred; past part. tarred; ger. tarring
  1. to cover something with the dark, sticky substance
    The workers tarred the roof to make it waterproof.
  2. to damage someone's reputation
    The false rumors tarred her reputation, making it hard for her to find a job.