What is the meaning of architecture?

noun

• An architectural product or work.
• The discipline dealing with the principles of design and construction and ornamentation of fine buildings.
  • usage: "architecture and eloquence are mixed arts whose end is sometimes beauty and sometimes use"
• The profession of designing buildings and environments with consideration for their esthetic effect.
• Computer science. ( the structure and organization of a computer's hardware or system software)
  • usage: "the architecture of a computer's system software"
  • synonyms: computer architecture