erupt

verbs

start abruptly
"After 1989, peace broke out in the former East Bloc"
break out, erupt
erupt or intensify suddenly
"Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
break open, burst out, erupt, flare, flare up, irrupt
is derived from
eruption
start to burn or burst into flames
"Marsh gases ignited suddenly"; "The oily rags combusted spontaneously"
catch fire, combust, conflagrate, erupt, ignite, take fire
break out
"The tooth erupted and had to be extracted"
break through, come out, erupt, push through
is derived from
eruption
become active and spew forth lava and rocks
"Vesuvius erupts once in a while"
belch, erupt, extravasate
is derived from
eruption
is derived from
eruption
force out or release suddenly and often violently something pent up
"break into tears"; "erupt in anger"
break, burst, erupt
appear on the skin
"A rash erupted on her arms after she had touched the exotic plant"
erupt
verb group
break out
"The tooth erupted and had to be extracted"
break through, come out, erupt, push through
is a type of (narrower)
come into sight or view
"He suddenly appeared at the wedding"; "A new star appeared on the horizon"
appear
become raw or open
"He broke out in hives"; "My skin breaks out when I eat strawberries"; "Such boils tend to recrudesce"
break out, erupt, recrudesce
is derived from
eruptive