What is the noun form of encompass?

There isn't a single, direct noun form of "encompass". However, depending on the context, you could use several alternatives:

* Encompassing: This is a gerund (verb acting as a noun) and can often be used to express the action of encompassing.

* Scope: This refers to the extent or range of something, and it can be used to describe what is encompassed.

* Range: Similar to scope, this refers to the variety or extent of something.

* Circumference: This specifically refers to the boundary or outer limit of something, which could be considered an encompassing element.

* Embrace: This word implies a welcoming and inclusive encompassing of something.

The best choice depends on the specific meaning you wish to convey.