Search Result for "tug-of-war": 
Wordnet 3.0

NOUN (2)

1. any hard struggle between equally matched groups;

2. a contest in which teams pull of opposite ends of a rope; the team dragged across a central line loses; 



WordNet (r) 3.0 (2006):

tug-of-war
    n 1: any hard struggle between equally matched groups
    2: a contest in which teams pull of opposite ends of a rope; the
       team dragged across a central line loses