volcano
//vɒlˈkeɪnoʊ//
Noun
volcanoSingular
volcanoesPlural
1
A mountain or hill with an opening in the Earth's crust through which lava, rock fragments, hot vapor, and gas are or have been erupted from the Earth's interior
Mount Fuji is a famous volcano in Japan.
2
A situation or state of affairs that is potentially explosive or dangerous
The political situation in the region is a volcano waiting to erupt.