noun (n)

• a thin layer covering something(noun.artifact)

  Synonym:
  coat
  

  source: wordnet30
• a decorative texture or appearance of a surface (or the substance that gives it that appearance)(noun.attribute)

  Synonym:
  finish, finishing
  

  source: wordnet30
• a heavy fabric suitable for coats(noun.artifact)

  source: wordnet30
• the work of applying something(noun.act)

  Example:
  The surface was ready for a coating of paint.
  

  Synonym:
  application, covering
  

  source: wordnet30
• A coat or covering; a layer of any substance, as a cover or protection; as, the coating of a retort or vial.(noun)

  source: webster1913