A definition of architecture is a lifelong search for me. Currently I believe architecture is everything: from a conversation to a building to a path, all acts and objects receive a process of design. Peter Nabokov and Robert Easton defined their study of Native American architecture this way:
"In our view, the term "architecture" refers to more than just the design and decoration of buildings. It embraces what happens whenever human thought or action makes order and meaning of random space: naming places, designating sacred parts of "wilderness," clearing village areas and garden plots, claiming food-gathering areas, planning and constructing buildings, and arraigning the spaces that surround and connect them. Finally, it includes the often unseen social and religious meanings which are encoded into buildings and spatial domains."