noun (n)

• a member of the Mongolian people of central Asia who invaded Russia in the 13th century(noun.person)

  Synonym:
  mongol tatar, tartar
  

  source: wordnet30
• a member of the Turkic-speaking people living from the Volga to the Ural Mountains (the name has been attributed to many other groups)(noun.person)

  source: wordnet30
• the Turkic language spoken by the Tatar living from the Volga to the Ural Mountains(noun.communication)

  source: wordnet30