1. burst forth, leap out, rush out, sally out

jump out from a hiding place and surprise (someone)

Example Sentences:
'The attackers leapt out from the bushes'

Synonyms

• leap out
• rush out
• sally out

2. break loose, burst forth, explode

be unleashed; emerge with violence or noise

Example Sentences:
'His anger exploded'

Synonyms

• break loose
• explode

3. burst forth, effloresce

come into or as if into flower

Example Sentences:
'These manifestations effloresced in the past'

Synonyms

• effloresce