Deathblows refer to fatal or decisive strikes or actions that lead to defeat or destruction. Some synonyms for this term include finishing blow, coup de grâce, knockout punch, fatal blow, and mortal strike. These words describe the final, ultimate act that leads to the downfall or defeat of an opponent or a situation. Deathblows can also refer to the ultimate sacrifice made by an individual for a greater cause or purpose. These synonyms are commonly used in literature, movies, and games to add drama and suspense to a scene or to emphasize the impact of an action or decision.