Wordnet 3.0
NOUN (1)
1. 
 United States labor leader who was president of the Teamsters Union; 
 he was jailed for trying to bribe a judge and later disappeared and is assumed to have been murdered (1913-1975); 
[syn: Hoffa, Jimmy Hoffa, James Riddle Hoffa]
WordNet (r) 3.0 (2006):
James Riddle Hoffa
    n 1: United States labor leader who was president of the
         Teamsters Union; he was jailed for trying to bribe a judge
         and later disappeared and is assumed to have been murdered
         (1913-1975) [syn: Hoffa, Jimmy Hoffa, James Riddle
         Hoffa]