Noun
The act of extinguishing or making extinct; a putting an end to; the act of putting out or destroying light, fire, life, activity, influence, etc.
State of being extinguished or of ceasing to be; destruction; suppression; as, the extinction of life, of a family, of a quarrel, of claim.
Source: Webster's dictionaryMore than any other time in history, mankind faces a crossroads. One path leads to despair and utter hopelessness. The other, to total extinction. Let us pray we have the wisdom to choose correctly. Woody Allen
Hatred is a feeling which leads to the extinction of values. José Ortega y Gasset
Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same. Ronald Reagan
Quite clearly, our task is predominantly metaphysical, for it is how to get all of humanity to educate itself swiftly enough to generate spontaneous social behaviors that will avoid extinction. Buckminster Fuller
The problems of this world are only truly solved in two ways: by extinction or duplication. Susan Sontag
The extinction of race consciousness as between Muslims is one of the outstanding achievements of Islam, and in the contemporary world there is, as it happens, a crying need for the propagation of this Islamic virtue. Arnold J. Toynbee