WordWeb Online

1. Jump out from a hiding place and surprise (someone)
   "The attackers burst forth from the bushes";
   - leap out, rush out, sally out
    
2. Be unleashed; emerge with violence or noise
   "His anger burst forth";
   - explode, break loose
    
3. Come into or as if into flower
   "These manifestations burst forth in the past";
   - effloresce

Derived forms: bursts forth, burst forth, bursting forth

Type of: appear, bloom, blossom, change state, flower, turn