Architecture is a complex discipline, and works of architecture are diverse and constantly changing. Therefore, it is difficult to determine the range and essence of architecture and create a definition. This paper analyses the problem with definitions of architecture on the basis of semantics, aesthetics, and metaphysics. It considers the question of identity and essence, and the cause, purpose and consequence of defining.

Architecture is a complex discipline, and works of architecture are diverse and constantly changing. Therefore, it is difficult to determine the range and essence of architecture and create a definition. This paper analyses the problem with definitions of architecture on the basis of semantics, aesthetics, and metaphysics. It considers the question of identity and essence, and the cause, purpose and consequence of defining.