What is architecture?

Architecture is a combination of art and design. It's different from engineering.

https://www.shiksha.com/careers/architect-13 go through the link. it's a complete design, way of designing layouts, the method of designing etc

Architecture is both, the process and product of Planning, Designing and Construction of a space

Architecture refers to the overall design of a building, structure, or system that unifies its components or elements into a coherent and functional whole.