What is one-word synonym for intelligent design?

There isn't a single perfect one-word synonym for "intelligent design" that captures all of its nuances. However, depending on the context, you could consider:

* Creationism: This is a common, though often controversial, synonym.

* Design: This is more neutral and focuses on the idea of a designer, but doesn't specify the nature of the designer.

* Purpose: This emphasizes the idea that the universe or life has a specific purpose or direction.

Ultimately, the best synonym would depend on the specific meaning you want to convey.