Propagation
Part of speech: noun
Definition: the multiplication or natural increase in a population the dissemination of something to a larger area or greater number the act of propagating, especially the movement of a wave the elongation part of transcription winning new converts some degree of success in the spread of propaganda
Example sentence: Religion which requires persecution to sustain, it is of the devil's propagation.
Extension
Part of speech: noun
Definition: The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension")Capacity of a concept or general term to include a greater or smaller number of objects; -- correlative of intension.A written engagement on the part of a creditor, allowing a debtor further time to pay a debt.The operation of stretching a broken bone so as to bring the fragments into the same straight line.An exercise in which an arm or leg is straightened against resistance.A simple offensive action, consisting of extending the weapon arm forward.A numerical code used to specify a specific telephone in a telecommunication network.A file extension.
Example sentence: We must address, individually and collectively, moral and ethical issues raised by cutting-edge research in artificial intelligence and biotechnology, which will enable significant life extension, designer babies, and memory extraction.