Search Result for "powder keg":
Wordnet 3.0

NOUN (2)

1. a potentially explosive state;

2. keg (usually made of metal) for gunpowder or blasting powder; 



WordNet (r) 3.0 (2006):

powder keg
    n 1: a potentially explosive state
    2: keg (usually made of metal) for gunpowder or blasting powder