communicate vs diffuse

communicate

verb
  • To impart or transmit (an intangible quantity, substance); to give a share of. 

  • To impart or transmit (information or knowledge) to someone; to make known, to tell. 

  • To pass on (a disease) to another person, animal etc. 

  • To express or convey ideas, either through verbal or nonverbal means; to have intercourse, to exchange information. 

  • To receive the bread and wine at a celebration of the Eucharist; to take part in Holy Communion. 

  • To administer the Holy Communion to (someone). 

  • To be connected with (another room, vessel etc.) by means of an opening or channel. 

diffuse

verb
  • To be spread over or through as in air, water, or other matter, especially by fluid motion or passive means. 

  • To spread over or through as in air, water, or other matter, especially by fluid motion or passive means. 

adj
  • Wordy; verbose. 

  • Everywhere or throughout everything; not focused or concentrated. 

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