noun (n)

• the act of arranging in a graduated series(noun.act)

  Synonym:
  scaling
  

  source: wordnet30
• changing the ground level to a smooth horizontal or gently sloping surface(noun.act)

  Synonym:
  leveling
  

  source: wordnet30
• evaluation of performance by assigning a grade or score(noun.act)

  Example:
  What he disliked about teaching was all the grading he had to do.
  

  Synonym:
  marking, scoring
  

  source: wordnet30
• The act or method of arranging in or by grade, or of bringing, as the surface of land or a road, to the desired level or grade.(noun)

  source: webster1913