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a distinctive but intangible quality surrounding a person or thing; "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance"
of a situation that is sharply divided into mutually exclusive categories; "he rejected a black-and-white world"; "there are no black-and-white certainties"; "there were no grey areas, you were either for him or against him, he was all black-and-white"