Search Result for "sumo": 
Wordnet 3.0

NOUN (1)

1. a Japanese form of wrestling; you lose if you are forced out of a small ring or if any part of your body (other than your feet) touches the ground; 



WordNet (r) 3.0 (2006):

sumo
    n 1: a Japanese form of wrestling; you lose if you are forced
         out of a small ring or if any part of your body (other than
         your feet) touches the ground