leakage vs trickle

leakage

noun
  • An act of leaking, or something that leaks. 

  • The situation where sound is picked up by a microphone from a source other than that which is intended. 

  • The loss of revenue generated by tourism to the economies of other countries. 

  • The amount lost due to a leak. 

  • Loss of retail stock, especially due to theft. 

  • An undesirable flow of electric current through insulation. 

trickle

noun
  • A very thin flow; the act of trickling. 

  • A very thin river. 

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

  • To move or roll slowly. 

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

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