What is a shorter way to say civilization?

There isn't one single perfect shorter word for "civilization," as the meaning is quite broad. It depends on the context and what specific aspect of civilization you want to emphasize. Here are some options:

General:

* Society - This is a good general alternative, focusing on the collective group of people.

* Culture - This emphasizes the shared values, beliefs, and practices of a group.

* Community - This focuses on the sense of shared space and belonging.

More specific:

* Urbanization - If focusing on the growth of cities and urban living.

* Progress - If emphasizing technological and social advancement.

* Development - If emphasizing the process of becoming more complex and sophisticated.

Ultimately, the best alternative depends on the specific context and meaning you want to convey.