pullulate

Verb

• breed freely and abundantly

• become abundant; increase rapidly

• produce buds, branches, or germinate
  • the potatoes sprouted
    

• move in large numbers
  • people were pouring out of the theater
    
  • beggars pullulated in the plaza
    

• be teeming, be abuzz
  • The garden was swarming with bees
    
  • The plaza is teeming with undercover policemen
    
  • her mind pullulated with worries
    

Related words

• Synonyms: 
  shoot , spud , germinate , bourgeon , burgeon forth , sprout , pour , swarm , stream , teem