adverb (r)

• to a degree exceeding normal or proper limits(adv.all)

  Example:
  Too big.
  

  Synonym:
  excessively, overly, to a fault
  

  source: wordnet30
• in addition(adv.all)

  Example:
  He has a Mercedes, too.
  

  source: wordnet30
• Over; more than enough; -- noting excess; as, a thing is too long, too short, or too wide; too high; too many; too much.(adverb)

  source: webster1913