RhymeZone: niche definitions

Definitions of niche:

noun: (ecology) the status of an organism within its environment and community (affecting its survival as a species)
noun: a position particularly well suited to the person who occupies it
Example: "He found his niche in the academic world"
noun: an enclosure that is set back or indented
noun: a small concavity

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See niche used in context: 23 rhymes, several books and articles.