WordNet2.0 Description:
Includes spellchecking and a hypernym hierarchy browser (i.e. cat -- feline -- ... -- mammal -- ... -- animal -- ... -- living thing -- object -- entity).WordNet is an online lexical reference system (it's a dictionary and much much more) developed at Princeton University's Cognitive Science Laboratory under the direction of Professor George A. Miller.

WordNet: Wordnet is lexical reference system (a dictionary and much much more).
Publisher: William Taysom