noun (n)

• a structure that has a roof and walls and stands more or less permanently in one place(noun.artifact)

  Example:
  There was a three-story building on the corner.
  

  Synonym:
  edifice
  

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

  Example:
  His hobby was the building of boats.
  

  Synonym:
  construction
  

  source: wordnet30
• the commercial activity involved in repairing old structures or constructing new ones(noun.act)

  Example:
  Workers in the building trades.
  

  source: wordnet30
• the occupants of a building(noun.group)

  Example:
  The entire building complained about the noise.
  

  source: wordnet30
• The act of constructing, erecting, or establishing.(noun)

  source: webster1913