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an odd or fanciful or capricious idea; "the theatrical notion of disguise is associated with disaster in his stories"; "he had a whimsy about flying to the moon"; "whimsy can be humorous to someone with time to enjoy it"
(computing) a discrete item that provides a description of virtually anything known to a computer; "in object-oriented programming, objects include data and define its status, its methods of operation and how it interacts with other objects"