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