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adj.
being the only one; single and isolated from others; "the lone doctor in the entire county"; "a lonesome pine"; "an only child"; "the sole heir"; "the sole example"; "a solitary instance of cowardice"; "a solitary speck in the sky"
adj.
consisting of or involving a single element or component; "in a unary operation in a mathematical system one element is used to yield a single result"
adj.
surpassing the ordinary or normal; "Beyond his preternatural affability there is some acid and some steel" - George Will; "his uncanny sense of direction"
adj.
having the same sound (especially the same vowel sound) occurring in successive stressed syllables; "note the assonant words and syllables in `tilting at windmills'"
adj.
not capable of being distinguished or differentiated; "the two specimens are actually different from each other but the differences are almost indistinguishable"; "the twins were indistinguishable"; "a colorless person quite indistinguishable from the colorless mass of humanity"