The Collaborative International Dictionary of English v.0.48:

Toon \Toon\, obs.
   pl. of Toe. --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Toon \Toon\, n. [Hind. tun, t[=u]n, Skr. tunna.] (Bot.)
   The reddish brown wood of an East Indian tree (Cedrela
   Toona) closely resembling the Spanish cedar; also. the tree
   itself.
   [1913 Webster]

WordNet (r) 3.0 (2006):

toon
    n 1: a film made by photographing a series of cartoon drawings
         to give the illusion of movement when projected in rapid
         sequence [syn: cartoon, animated cartoon, toon]