Wordnet 3.0
ADJECTIVE (1)
1. 
 holding first place in a contest; 
- Example: "a champion show dog"- Example: "a prizewinning wine"[syn: champion, prizewinning]
WordNet (r) 3.0 (2006):
prizewinning
    adj 1: holding first place in a contest; "a champion show dog";
           "a prizewinning wine" [syn: champion, prizewinning]