1.The act of turning or changing from one state or condition to another, or the state of being changed; transmutation; change. "Artificial conversion of water into ice." "The conversion of the aliment into fat."
2.The act of changing one's views or course, as in passing from one side, party, or from of religion to another; also, the state of being so changed. "Conversion to Christianity."
3.(Law) An appropriation of, and dealing with the property of another as if it were one's own, without right; as, the conversion of a horse. "Or bring my action of conversion And trover for my goods."
4.(Logic) The act of interchanging the terms of a proposition, as by putting the subject in the place of the predicate, or the contrary.
5.(Math.) A change or reduction of the form or value of a proposition; as, the conversion of equations; the conversion of proportions.
7.(Theol.) A spiritual and moral change attending a change of belief with conviction; a change of heart; a change from the service of the world to the service of God; a change of the ruling disposition of the soul, involving a transformation of the outward life. "He oft Frequented their assemblies,... and to them preached Conversion and repentance, as to souls In prison under judgments imminent."