niche

Definitions

• (architecture) A cavity, hollow, or recess, generally within the thickness of a wall, for a statue, bust, or other erect ornament. Hence, any similar position, literal or figurative.
• (ecology) A function within an ecological system to which an organism is especially suited.
• (by extension) Any position of opportunity for which one is well-suited, such as a particular market in business.
• (Islam) An arrow woven into a prayer rug pointing in the direction of qibla.