Erupt means to break open and send out lava, smoke, or ash from a volcano. It happens suddenly and with force. This is the most common use of the word.
The volcano will erupt soon.
Smoke erupted from the mountain.
Erupt can mean to suddenly start something bad like war, violence, or a fight. It is a sudden and strong start in a place.
Fighting erupted after the meeting.
Riots erupted in the city last night.
Erupt means to suddenly show a strong feeling like anger or laughter. It happens suddenly and strongly.
She erupted into loud laughter.
He erupted in anger after the news.
Erupt can describe something like pain or a rash that starts suddenly and strongly on the body. It means to appear or start quickly.
A rash erupted on her skin.
Pain erupted in his leg suddenly.
