addressee vs communicant

addressee

noun
  • A person or entity to whom discourse is directed, or the words referring to such an entity. 

  • The person or organization to which something, such as a letter or message, is addressed or sent, for whom the item is intended. 

communicant

noun
  • One who communicates. 

  • A person who receives (or is allowed to receive) the elements (i.e., bread and wine) of the sacrament of Holy Communion. (Compare also these terms: communion, Communion, Lord's Supper, Mass, Eucharist, Divine Liturgy.) 

adj
  • Communicating. 

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