Wordnet 3.0
NOUN (1)
1. 
 a river in northeastern Brazil that flows generally northward to the Atlantic Ocean; 
[syn: Parnaiba, Parnahiba]
WordNet (r) 3.0 (2006):
Parnahiba
    n 1: a river in northeastern Brazil that flows generally
         northward to the Atlantic Ocean [syn: Parnaiba,
         Parnahiba]