[ni:?, n?t?]
¦ noun
1. a shallow recess, especially one in a wall to display an ornament.
2. (one's niche) a comfortable or suitable position in life.
3. a specialized but profitable corner of the market.
4. Ecology a role taken by a type of organism within its community.
¦ verb place in a niche.
Origin
C17: from Fr., lit. 'recess', from nicher 'make a nest', based on L. nidus 'nest'.