| n. | 1. | 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. |
| Noun | 1. | niche - a position particularly well suited to the person who occupies it; "he found his niche in the academic world" |
| 2. | niche - a small concavity | |
| 3. | niche - an enclosure that is set back or indented Synonyms: recess | |
| 4. | niche - (ecology) the status of an organism within its environment and community (affecting its survival as a species) Synonyms: ecological niche |