All-out war is a phrase often used to describe a conflict that involves the complete mobilization of a nation's resources and efforts. However, there are many other synonyms that can be used instead of all-out war. These include total war, full-scale war, global war, unrestricted warfare, absolute war, and total mobilization. Each of these phrases emphasizes the extreme nature of the war and the overarching goals of all parties involved. They can be used interchangeably to describe conflicts that involve massive amounts of destruction, loss of life, and suffering. Ultimately, the use of these words highlights the gravity and importance of war, urging us to work towards peace and diplomacy as much as possible.