📒 a comfortable or suitable role, job, way of life, etc.
📒 a small section of the market for a particular kind of product or service
📒 a small hollow place, especially in a wall to contain a statue, etc., or in the side of a hill
📒 a position or role taken by a kind of living thing within its community. Different living things may have the same niche in different places, for example antelopes in Africa and kangaroos in Australia.