noun (n)

• the profession of a teacher(noun.act)

  Example:
  He prepared for teaching while still in college.
  

  Synonym:
  instruction, pedagogy
  

  source: wordnet30
• a doctrine that is taught(noun.cognition)

  Example:
  The teachings of religion.
  

  Synonym:
  commandment, precept
  

  source: wordnet30
• the activities of educating or instructing; activities that impart knowledge or skill(noun.act)

  Example:
  Good classroom teaching is seldom rewarded.
  

  Synonym:
  didactics, education, educational activity, instruction, pedagogy
  

  source: wordnet30
• The act or business of instructing; also, that which is taught; instruction.(noun)

  source: webster1913