pullulate in WordNet English dictionary

1. produce buds, branches, or germinate
   "the potatoes sprouted"
   shoot  spud  germinate  pullulate  bourgeon  burgeon forth  sprout 
   
2. move in large numbers
   "people were pouring out of the theater"; "beggars pullulated in the plaza"
   pour  swarm  stream  teem  pullulate 
   
3. breed freely and abundantly
   pullulate 
   
4. become abundant; increase rapidly
   pullulate 
   
5. be teeming, be abuzz
   "The garden was swarming with bees"; "The plaza is teeming with undercover policemen"; "her mind pullulated with worries"
   teem  pullulate  swarm