1. The art or science of building; especially, the art of building houses, churches, bridges, and other structures, for the purposes of civil life; often called civil architecture. Many other architectures besides Gothic. (Ruskin)
3. Construction, in a more general sense; frame or structure; workmanship. The architecture of grasses, plants, and trees. (Tyndall) The formation of the first earth being a piece of divine architecture. (Burnet) Military architecture, the art of fortifications. Naval architecture, the art of building ships.