dagger
noun [ C ] uk/ˈdæɡ.ər/ us/ˈdæɡ.ɚ/
（尤指旧时的）匕首，短剑
a short, pointed knife that is sharp on both sides, used especially in the past as a weapon
Idiom
(at) daggers drawnidiom UK 冷战（的），相互戒备（的）
If two people, countries, etc. are at daggers drawn, they are in a state of extreme unfriendliness and do not trust each other.
The two sides have been at daggers drawn for some months now with no sign of improvement in relations. 双方一连冷战了好几个月，到现在依然没有任何缓和的迹象。