'Too' definitions:

Definition of 'too'

From: WordNet
adverb
To a degree exceeding normal or proper limits; "too big" [syn: excessively, overly, to a fault, too]
adverb
In addition; "he has a Mercedes, too" [syn: besides, too, also, likewise, as well]

Definition of 'Too'

From: GCIDE
  • Too \Too\, adv. [The same word as to, prep. See To.] [1913 Webster]
  • 1. Over; more than enough; -- noting excess; as, a thing is too long, too short, or too wide; too high; too many; too much. [1913 Webster]
  • His will, too strong to bend, too proud to learn. --Cowley. [1913 Webster]
  • 2. Likewise; also; in addition. [1913 Webster]
  • An honest courtier, yet a patriot too. --Pope. [1913 Webster]
  • Let those eyes that view The daring crime, behold the vengeance too. --Pope. [1913 Webster]
  • Too too, a duplication used to signify great excess. [1913 Webster]
  • O that this too too solid flesh would melt. --Shak. [1913 Webster]
  • Such is not Charles his too too active age. --Dryden. [1913 Webster]
  • Syn: Also; likewise. See Also. [1913 Webster]