betray vs communicate

betray

verb
  • To disclose or indicate, for example something which prudence would conceal; to reveal unintentionally. 

  • To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known. 

  • To prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive. 

  • To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly. 

  • To mislead; to expose to inconvenience not foreseen; to lead into error or sin. 

  • To lead astray; to seduce (as under promise of marriage) and then abandon. 

communicate

verb
  • 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. 

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

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