noun (n)

• a fierce or audacious person(noun.person)

  Example:
  He's a tiger on the tennis court.
  It aroused the tiger in me.
  

  source: wordnet30
• large feline of forests in most of Asia having a tawny coat with black stripes; endangered(noun.animal)

  Synonym:
  panthera tigris
  

  source: wordnet30
• A very large and powerful carnivore (Felis tigris) native of Southern Asia and the East Indies. Its back and sides are tawny or rufous yellow, transversely striped with black, the tail is ringed with black, the throat and belly are nearly white. When full grown, it equals or exceeds the lion in size and strength. Called also royal tiger, and Bengal tiger.(noun)

  source: webster1913