Easing of tension is a term used to describe a reduction in hostility between two or more parties. In this context, the crossword solutions Detente (7 letters) and THAW (4 letters) both refer to a decrease in tension between two sides. Detente is a French word meaning 'release from tension' while THAW is a metaphor for a gradual decrease in hostility. Both terms are used to describe a decrease in tension between two sides.