1. eruption
The volcanic eruption threatened the village.
The 2010 eruption of a volcano in Iceland caused many problems for European travelers.
I have a skin eruption.
2. erupt
About fifty volcanoes erupt each year.
Since the volcano last erupted, many houses have been built in a dangerous position on its slopes.
The area had to be quickly evacuated when the volcano erupted.
If a volcano erupts, it suddenly throws out smoke, fire, and melted rocks.