Wiktionary
burst forth
vb. To erupt
WordNet
burst forth
v. jump out from a hiding place and surprise (someone); "The attackers leapt out from the bushes" [syn: leap out, rush out, sally out]
be unleashed; burst forth with violence or noise; "His anger exploded" [syn: explode, break loose]
burst forth into or as if into flower; "These manifestations effloresced in the past" [syn: effloresce]