noun: (ethics, religion, uncountable) The doctrine that all human actions are not so much determined by the preceding events, conditions, causes or karma as by deliberate choice or free will.
noun: (countable, physics) A case in which the uncertainty principle applies; a case in which certain pairs of physical properties such as the position and momentum of a particle cannot be known simultaneously.
noun: (countable) Any situation in which the outcome cannot be completely predicted in advance.
noun: (countable, computing) A situation in which there are multiple valid options for next step in a process.
