1. a specialized segment of the market for a particular kind of product or service
2. a comfortable or suitable position in life or employment
3. a recess, especially an ornamental one, in a wall to display a statue or other object
Usage: architecture

1. denoting or relating to products, services, or interests that appeal to a small, specialized section of the population

Examples

• The company found its niche selling handmade jewelry online.
• After years of searching, she finally found her niche as a teacher.
• The statue was placed in a marble niche in the cathedral wall.
• Each species occupies a unique ecological niche in the forest.
• The bookstore specializes in niche publications about local history.
• His niche market consists of collectors of vintage guitars.
• The small alcove provided the perfect niche for displaying art.
• She carved out a niche for herself in the competitive tech industry.