0 a small barrel usually used for storing beer or other alcoholic drinks
1 a small barrel (= container with a circular top and bottom and curved sides)
The expellees would otherwise become a potential social and political powder keg, the source of 'political and economic' unrest.
The brewery is going through a reorganisation, and part of the reorganisation will involve the re-equipping of the keg-filling operation.
If we block this prospect, we shall be storing up a powder keg.
We are sitting on a powder keg of outdated nuclear installations.
I beg them not to ignite the powder keg that is smouldering in the countryside.
Those two problems form a double powder keg in the region.
As we have heard, we are discussing one of the potential powder kegs of the world today.
When an endeavour was made to draw off the whisky from the keg, it was found that there was water coming out.