Wordnet 3.0
NOUN (1)
1. 
 a volcanic island (part of Campania) in the Tyrrhenian Sea at the north end of the Bay of Naples; 
WordNet (r) 3.0 (2006):
Ischia
    n 1: a volcanic island (part of Campania) in the Tyrrhenian Sea
         at the north end of the Bay of Naples