What is a synonym for niche?

Here are some synonyms for "niche," depending on the context:

General:

* Specialty

* Domain

* Area

* Field

* Market

* Segment

* Space

* Category

* Genre

More specific:

* Pocket (for a small niche)

* Forté (for a niche that someone excels in)

* Purview (for a niche that someone is responsible for)

* Habitat (for an ecological niche)

The best synonym to use will depend on the specific situation and what you are trying to convey.