Definition of architecture noun from the Oxford Advanced American Dictionary

architecture

noun
/ˈɑrkəˌtɛktʃər/
 
 
1 [uncountable] the art and study of designing buildingsto study architecture2 [uncountable] the design or style of a building or buildingsthe architecture of the eighteenth centurymodern architecture3 [countable, uncountable] (computing) the design and structure of a computer system