swarm vs trickle

swarm

verb
  • To move as a swarm. 

  • To fill a place as a swarm. 

  • To climb by gripping with arms and legs alternately. 

  • To overwhelm as by an opposing army. 

  • To breed multitudes. 

  • To teem, or be overrun with insects, people, etc. 

noun
  • A mass of people, animals or things in motion or turmoil. 

  • A large number of insects, especially when in motion or (for bees) migrating to a new colony. 

  • A group of nodes sharing the same torrent in a BitTorrent network. 

trickle

verb
  • To move or roll slowly. 

  • to flow in a very thin stream or drop continuously. 

  • to pour a liquid in a very thin stream, or so that drops fall continuously. 

noun
  • A very thin river. 

  • A very thin flow; the act of trickling. 

How often have the words swarm and trickle occurred in a corpus of books? (source: Google Ngram Viewer )