definition of
unique

[1] #1 unique s. [alone, unequaled, unequalled, unparalleled] radically distinctive and without equal; "he is alone in the field of microbiology"; "this theory is altogether alone in its penetration of the problem"; "Bach was unique in his handling of counterpoint"; "craftsmen whose skill is unequaled"; "unparallele. wn

[2] #2 unique s. (followed by 'to') applying exclusively to a given category or condition or locality; "a species unique to Australia". wn

[3] #3 unique s. [singular] the single one of its kind; "a singular example"; "the unique existing example of Donne's handwriting"; "a unique copy of an ancient manuscript"; "certain types of problems have unique solutions". wn

[4] #4 unique s. highly unusual or rare but not the single instance; "spoke with a unique accent"; "had unique ability in raising funds"; "a frankness unique in literature"; "a unique dining experience". wn