noun (n)

• an address of a religious nature (usually delivered during a church service)(noun.communication)

  Synonym:
  discourse, sermon
  

  source: wordnet30
• a moralistic rebuke(noun.communication)

  Example:
  Your preaching is wasted on him.
  

  Synonym:
  sermon
  

  source: wordnet30
• The act of delivering a religious discourse; the art of sermonizing; also, a sermon; a public religious discourse; serious, earnest advice.(noun)

  source: webster1913