erupt vs break out

erupt and break out both are verbs.

Word	Noun	Adjective	Verb	Adverb
erupt	No	No	Yes	No
break out	No	No	Yes	No

As verbs, erupt and break out are synonyms defined as:

As verbs, erupt and break out are synonyms defined as:

Other synonyms of erupt include recrudesce.

erupt (verb)	break out (verb)
become active and spew forth lava and rocks	become raw or open
start abruptly	begin suddenly and sometimes violently
erupt or intensify suddenly	start abruptly
become raw or open	take from stowage in preparation for use
break out	move away or escape suddenly
appear on the skin
force out or release suddenly and often violently something pent up
start to burn or burst into flames