输入一段英文文本并给出其中的五个最常用的单词。



Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied sciences, and types of application.
The five most commonly used words in this text are: engineering, design, build, applied, and sciences.